126216870944 has 12 divisors (see below), whose sum is σ = 248489464734. Its totient is φ = 63108435456.

The previous prime is 126216870937. The next prime is 126216870953. The reversal of 126216870944 is 449078612621.

It can be written as a sum of positive squares in only one way, i.e., 94979843344 + 31237027600 = 308188^2 + 176740^2 .

It is a super-2 number, since 2×126216870944² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126216870892 and 126216870901.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1972138577 + ... + 1972138640.

Almost surely, 2^126216870944 is an apocalyptic number.

It is an amenable number.

126216870944 is a deficient number, since it is larger than the sum of its proper divisors (122272593790).

126216870944 is an equidigital number, since it uses as much as digits as its factorization.

126216870944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944277227 (or 3944277219 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 126216870944 in words is "one hundred twenty-six billion, two hundred sixteen million, eight hundred seventy thousand, nine hundred forty-four".