157128759684865 has 8 divisors (see below), whose sum is σ = 188606440729728. Its totient is φ = 125668388342640.

The previous prime is 157128759684863. The next prime is 157128759684929. The reversal of 157128759684865 is 568486957821751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 157128759684865 - 2¹ = 157128759684863 is a prime.

It is a super-2 number, since 2×157128759684865² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157128759684863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4327405687 + ... + 4327441996.

It is an arithmetic number, because the mean of its divisors is an integer number (23575805091216).

Almost surely, 2^{157128759684865} is an apocalyptic number.

It is an amenable number.

157128759684865 is a deficient number, since it is larger than the sum of its proper divisors (31477681044863).

157128759684865 is an equidigital number, since it uses as much as digits as its factorization.

157128759684865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8654851319.

The product of its digits is 8128512000, while the sum is 82.

The spelling of 157128759684865 in words is "one hundred fifty-seven trillion, one hundred twenty-eight billion, seven hundred fifty-nine million, six hundred eighty-four thousand, eight hundred sixty-five".