137959780456 has 8 divisors (see below), whose sum is σ = 258674588370. Its totient is φ = 68979890224.

The previous prime is 137959780391. The next prime is 137959780457. The reversal of 137959780456 is 654087959731.

It can be written as a sum of positive squares in only one way, i.e., 80151272100 + 57808508356 = 283110^2 + 240434^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (137959780457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8622486271 + ... + 8622486286.

Almost surely, 2^137959780456 is an apocalyptic number.

It is an amenable number.

137959780456 is a deficient number, since it is larger than the sum of its proper divisors (120714807914).

137959780456 is a wasteful number, since it uses less digits than its factorization.

137959780456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17244972563 (or 17244972559 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 64.

The spelling of 137959780456 in words is "one hundred thirty-seven billion, nine hundred fifty-nine million, seven hundred eighty thousand, four hundred fifty-six".