126951515976 has 16 divisors (see below), whose sum is σ = 317378790000. Its totient is φ = 42317171984.

The previous prime is 126951515947. The next prime is 126951515981. The reversal of 126951515976 is 679515159621.

It is a happy number.

It is a super-2 number, since 2×126951515976² (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, 2644823226 + ... + 2644823273.

It is an arithmetic number, because the mean of its divisors is an integer number (19836174375).

Almost surely, 2^126951515976 is an apocalyptic number.

It is an amenable number.

126951515976 is an abundant number, since it is smaller than the sum of its proper divisors (190427274024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126951515976 is a wasteful number, since it uses less digits than its factorization.

126951515976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5289646508 (or 5289646504 counting only the distinct ones).

The product of its digits is 5103000, while the sum is 57.

The spelling of 126951515976 in words is "one hundred twenty-six billion, nine hundred fifty-one million, five hundred fifteen thousand, nine hundred seventy-six".