37313473881 has 4 divisors (see below), whose sum is σ = 49751298512. Its totient is φ = 24875649252.

The previous prime is 37313473867. The next prime is 37313473891. The reversal of 37313473881 is 18837431373.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18837431373 = 3 ⋅6279143791.

It is not a de Polignac number, because 37313473881 - 2⁷ = 37313473753 is a prime.

It is a super-2 number, since 2×37313473881² (a number of 22 digits) contains 22 as substring.

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 37313473881.

It is not an unprimeable number, because it can be changed into a prime (37313473801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6218912311 + ... + 6218912316.

It is an arithmetic number, because the mean of its divisors is an integer number (12437824628).

Almost surely, 2^37313473881 is an apocalyptic number.

It is an amenable number.

37313473881 is a deficient number, since it is larger than the sum of its proper divisors (12437824631).

37313473881 is a wasteful number, since it uses less digits than its factorization.

37313473881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12437824630.

The product of its digits is 1016064, while the sum is 48.

The spelling of 37313473881 in words is "thirty-seven billion, three hundred thirteen million, four hundred seventy-three thousand, eight hundred eighty-one".