137880185942 has 4 divisors (see below), whose sum is σ = 206820278916. Its totient is φ = 68940092970.

The previous prime is 137880185909. The next prime is 137880185969. The reversal of 137880185942 is 249581088731.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34470046484 + ... + 34470046487.

It is an arithmetic number, because the mean of its divisors is an integer number (51705069729).

Almost surely, 2^137880185942 is an apocalyptic number.

137880185942 is a deficient number, since it is larger than the sum of its proper divisors (68940092974).

137880185942 is an equidigital number, since it uses as much as digits as its factorization.

137880185942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68940092973.

The product of its (nonzero) digits is 3870720, while the sum is 56.

The spelling of 137880185942 in words is "one hundred thirty-seven billion, eight hundred eighty million, one hundred eighty-five thousand, nine hundred forty-two".