151787128423 has 16 divisors (see below), whose sum is σ = 175219373056. Its totient is φ = 128792903040.

The previous prime is 151787128393. The next prime is 151787128459. The reversal of 151787128423 is 324821787151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151787128423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151787128463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2005438 + ... + 2079748.

It is an arithmetic number, because the mean of its divisors is an integer number (10951210816).

Almost surely, 2^151787128423 is an apocalyptic number.

151787128423 is a deficient number, since it is larger than the sum of its proper divisors (23432244633).

151787128423 is a wasteful number, since it uses less digits than its factorization.

151787128423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77254.

The product of its digits is 752640, while the sum is 49.

The spelling of 151787128423 in words is "one hundred fifty-one billion, seven hundred eighty-seven million, one hundred twenty-eight thousand, four hundred twenty-three".