157678825068 has 96 divisors (see below), whose sum is σ = 432994161600. Its totient is φ = 49450687488.

The previous prime is 157678825049. The next prime is 157678825091. The reversal of 157678825068 is 860528876751.

157678825068 is a `hidden beast` number, since 1 + 57 + 6 + 78 + 8 + 2 + 506 + 8 = 666.

It is a super-2 number, since 2×157678825068² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 157678824996 and 157678825014.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5915146 + ... + 5941742.

It is an arithmetic number, because the mean of its divisors is an integer number (4510355850).

Almost surely, 2^157678825068 is an apocalyptic number.

157678825068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157678825068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216497080800).

157678825068 is an abundant number, since it is smaller than the sum of its proper divisors (275315336532).

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

157678825068 is a wasteful number, since it uses less digits than its factorization.

157678825068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29856 (or 29848 counting only the distinct ones).

The product of its (nonzero) digits is 45158400, while the sum is 63.

The spelling of 157678825068 in words is "one hundred fifty-seven billion, six hundred seventy-eight million, eight hundred twenty-five thousand, sixty-eight".