128151914888 has 16 divisors (see below), whose sum is σ = 240381883980. Its totient is φ = 64050079168.

The previous prime is 128151914873. The next prime is 128151914911. The reversal of 128151914888 is 888419151821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 111824697604 + 16327217284 = 334402^2 + 127778^2 .

It is a super-2 number, since 2×128151914888² (a number of 23 digits) contains 22 as substring.

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, 3213731 + ... + 3253362.

Almost surely, 2^128151914888 is an apocalyptic number.

It is an amenable number.

128151914888 is a deficient number, since it is larger than the sum of its proper divisors (112229969092).

128151914888 is a wasteful number, since it uses less digits than its factorization.

128151914888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6469576 (or 6469572 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 56.

The spelling of 128151914888 in words is "one hundred twenty-eight billion, one hundred fifty-one million, nine hundred fourteen thousand, eight hundred eighty-eight".