126690073728 has 64 divisors (see below), whose sum is σ = 348124694400. Its totient is φ = 40773813248.

The previous prime is 126690073717. The next prime is 126690073781. The reversal of 126690073728 is 827370096621.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5677176 + ... + 5699447.

It is an arithmetic number, because the mean of its divisors is an integer number (5439448350).

Almost surely, 2^126690073728 is an apocalyptic number.

It is an amenable number.

126690073728 is an abundant number, since it is smaller than the sum of its proper divisors (221434620672).

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

126690073728 is a wasteful number, since it uses less digits than its factorization.

126690073728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11376669 (or 11376657 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 126690073728 in words is "one hundred twenty-six billion, six hundred ninety million, seventy-three thousand, seven hundred twenty-eight".