61900137375 has 32 divisors (see below), whose sum is σ = 106324488192. Its totient is φ = 31948452000.

The previous prime is 61900137359. The next prime is 61900137407. The reversal of 61900137375 is 57373100916.

It is not a de Polignac number, because 61900137375 - 2⁴ = 61900137359 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2650747 + ... + 2673996.

It is an arithmetic number, because the mean of its divisors is an integer number (3322640256).

Almost surely, 2^61900137375 is an apocalyptic number.

61900137375 is a deficient number, since it is larger than the sum of its proper divisors (44424350817).

61900137375 is a wasteful number, since it uses less digits than its factorization.

61900137375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5324792 (or 5324782 counting only the distinct ones).

The product of its (nonzero) digits is 119070, while the sum is 42.

The spelling of 61900137375 in words is "sixty-one billion, nine hundred million, one hundred thirty-seven thousand, three hundred seventy-five".