37891680655 has 16 divisors (see below), whose sum is σ = 45933943968. Its totient is φ = 30004240000.

The previous prime is 37891680643. The next prime is 37891680689. The reversal of 37891680655 is 55608619873.

It is not a de Polignac number, because 37891680655 - 2⁷ = 37891680527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 37891680655.

It is a congruent number.

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, 2056785 + ... + 2075125.

It is an arithmetic number, because the mean of its divisors is an integer number (2870871498).

Almost surely, 2^37891680655 is an apocalyptic number.

37891680655 is a deficient number, since it is larger than the sum of its proper divisors (8042263313).

37891680655 is a wasteful number, since it uses less digits than its factorization.

37891680655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22538.

The product of its (nonzero) digits is 10886400, while the sum is 58.

The spelling of 37891680655 in words is "thirty-seven billion, eight hundred ninety-one million, six hundred eighty thousand, six hundred fifty-five".