126756648840 has 64 divisors (see below), whose sum is σ = 380293444800. Its totient is φ = 33799684352.

The previous prime is 126756648797. The next prime is 126756648869. The reversal of 126756648840 is 48846657621.

It is a Cunningham number, because it is equal to 356029²-1.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3542479 + ... + 3578081.

It is an arithmetic number, because the mean of its divisors is an integer number (5942085075).

Almost surely, 2^126756648840 is an apocalyptic number.

126756648840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126756648840 is an abundant number, since it is smaller than the sum of its proper divisors (253536795960).

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

126756648840 is a wasteful number, since it uses less digits than its factorization.

126756648840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65286 (or 65282 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 126756648840 in words is "one hundred twenty-six billion, seven hundred fifty-six million, six hundred forty-eight thousand, eight hundred forty".