128477614802 has 16 divisors (see below), whose sum is σ = 194092925760. Its totient is φ = 63781083888.

The previous prime is 128477614787. The next prime is 128477614807. The reversal of 128477614802 is 208416774821.

It is a super-2 number, since 2×128477614802² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128477614807) 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, 45713 + ... + 508964.

It is an arithmetic number, because the mean of its divisors is an integer number (12130807860).

Almost surely, 2^128477614802 is an apocalyptic number.

128477614802 is a deficient number, since it is larger than the sum of its proper divisors (65615310958).

128477614802 is a wasteful number, since it uses less digits than its factorization.

128477614802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555505.

The product of its (nonzero) digits is 1204224, while the sum is 50.

The spelling of 128477614802 in words is "one hundred twenty-eight billion, four hundred seventy-seven million, six hundred fourteen thousand, eight hundred two".