37811794068 has 18 divisors (see below), whose sum is σ = 95579812874. Its totient is φ = 12603931344.

The previous prime is 37811794061. The next prime is 37811794073. The reversal of 37811794068 is 86049711873.

37811794068 is a `hidden beast` number, since 378 + 1 + 179 + 40 + 68 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37728400644 + 83393424 = 194238^2 + 9132^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37811794061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 525163771 + ... + 525163842.

Almost surely, 2^37811794068 is an apocalyptic number.

It is an amenable number.

37811794068 is an abundant number, since it is smaller than the sum of its proper divisors (57768018806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

37811794068 is a wasteful number, since it uses less digits than its factorization.

37811794068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050327623 (or 1050327618 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 37811794068 in words is "thirty-seven billion, eight hundred eleven million, seven hundred ninety-four thousand, sixty-eight".