151578728658 has 72 divisors (see below), whose sum is σ = 383639293440. Its totient is φ = 43126942320.

The previous prime is 151578728657. The next prime is 151578728671. The reversal of 151578728658 is 856827875151.

151578728658 is a `hidden beast` number, since 1 + 5 + 1 + 578 + 7 + 2 + 8 + 6 + 58 = 666.

151578728658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×151578728658² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 151578728595 and 151578728604.

It is not an unprimeable number, because it can be changed into a prime (151578728657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 148738 + ... + 570333.

It is an arithmetic number, because the mean of its divisors is an integer number (5328323520).

Almost surely, 2^151578728658 is an apocalyptic number.

151578728658 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

151578728658 is an abundant number, since it is smaller than the sum of its proper divisors (232060564782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151578728658 is a wasteful number, since it uses less digits than its factorization.

151578728658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719332 (or 719322 counting only the distinct ones).

The product of its digits is 37632000, while the sum is 63.

The spelling of 151578728658 in words is "one hundred fifty-one billion, five hundred seventy-eight million, seven hundred twenty-eight thousand, six hundred fifty-eight".