137880185946 has 32 divisors (see below), whose sum is σ = 279521394048. Its totient is φ = 45336698880.

The previous prime is 137880185909. The next prime is 137880185969. The reversal of 137880185946 is 649581088731.

It is a self number, because there is not a number n which added to its sum of digits gives 137880185946.

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, 275235 + ... + 592886.

It is an arithmetic number, because the mean of its divisors is an integer number (8735043564).

Almost surely, 2^137880185946 is an apocalyptic number.

137880185946 is an abundant number, since it is smaller than the sum of its proper divisors (141641208102).

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

137880185946 is a wasteful number, since it uses less digits than its factorization.

137880185946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868486.

The product of its (nonzero) digits is 11612160, while the sum is 60.

The spelling of 137880185946 in words is "one hundred thirty-seven billion, eight hundred eighty million, one hundred eighty-five thousand, nine hundred forty-six".