128074818964 has 24 divisors (see below), whose sum is σ = 227199305088. Its totient is φ = 63163235520.

The previous prime is 128074818961. The next prime is 128074818967. The reversal of 128074818964 is 469818470821.

It is an interprime number because it is at equal distance from previous prime (128074818961) and next prime (128074818967).

It is a super-2 number, since 2×128074818964² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128074818899 and 128074818908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128074818961) 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, 107772 + ... + 517459.

It is an arithmetic number, because the mean of its divisors is an integer number (9466637712).

Almost surely, 2^128074818964 is an apocalyptic number.

It is an amenable number.

128074818964 is a deficient number, since it is larger than the sum of its proper divisors (99124486124).

128074818964 is a wasteful number, since it uses less digits than its factorization.

128074818964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625935 (or 625933 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 58.

The spelling of 128074818964 in words is "one hundred twenty-eight billion, seventy-four million, eight hundred eighteen thousand, nine hundred sixty-four".