128000952784 has 20 divisors (see below), whose sum is σ = 248511105184. Its totient is φ = 63869054688.

The previous prime is 128000952767. The next prime is 128000952799. The reversal of 128000952784 is 487259000821.

It is a super-2 number, since 2×128000952784² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8205822 + ... + 8221405.

Almost surely, 2^128000952784 is an apocalyptic number.

It is an amenable number.

128000952784 is a deficient number, since it is larger than the sum of its proper divisors (120510152400).

128000952784 is a wasteful number, since it uses less digits than its factorization.

128000952784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16427722 (or 16427716 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 128000952784 in words is "one hundred twenty-eight billion, nine hundred fifty-two thousand, seven hundred eighty-four".