37881680553 has 12 divisors (see below), whose sum is σ = 54722366400. Its totient is φ = 25252430616.

The previous prime is 37881680549. The next prime is 37881680569. The reversal of 37881680553 is 35508618873.

37881680553 is a `hidden beast` number, since 3 + 7 + 8 + 8 + 1 + 6 + 80 + 553 = 666.

It is not a de Polignac number, because 37881680553 - 2² = 37881680549 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 37881680553.

It is not an unprimeable number, because it can be changed into a prime (37881680503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45253 + ... + 278946.

It is an arithmetic number, because the mean of its divisors is an integer number (4560197200).

Almost surely, 2^37881680553 is an apocalyptic number.

It is an amenable number.

37881680553 is a deficient number, since it is larger than the sum of its proper divisors (16840685847).

37881680553 is a wasteful number, since it uses less digits than its factorization.

37881680553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337188 (or 337185 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 37881680553 in words is "thirty-seven billion, eight hundred eighty-one million, six hundred eighty thousand, five hundred fifty-three".