128772852514 has 8 divisors (see below), whose sum is σ = 193164417900. Its totient is φ = 64384713216.

The previous prime is 128772852493. The next prime is 128772852517. The reversal of 128772852514 is 415258277821.

It can be written as a sum of positive squares in 2 ways, for example, as 128761121889 + 11730625 = 358833^2 + 3425^2 .

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

It is a super-2 number, since 2×128772852514² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128772852517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760399 + ... + 914194.

Almost surely, 2^128772852514 is an apocalyptic number.

128772852514 is a deficient number, since it is larger than the sum of its proper divisors (64391565386).

128772852514 is a wasteful number, since it uses less digits than its factorization.

128772852514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713044.

The product of its digits is 2508800, while the sum is 52.

The spelling of 128772852514 in words is "one hundred twenty-eight billion, seven hundred seventy-two million, eight hundred fifty-two thousand, five hundred fourteen".