37817376642 has 12 divisors (see below), whose sum is σ = 81937649430. Its totient is φ = 12605792208.

The previous prime is 37817376637. The next prime is 37817376647. The reversal of 37817376642 is 24667371873.

37817376642 is a `hidden beast` number, since 378 + 173 + 7 + 66 + 42 = 666.

37817376642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (37817376637) and next prime (37817376647).

It can be written as a sum of positive squares in only one way, i.e., 33430831281 + 4386545361 = 182841^2 + 66231^2 .

It is not an unprimeable number, because it can be changed into a prime (37817376647) 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, 1050482667 + ... + 1050482702.

Almost surely, 2^37817376642 is an apocalyptic number.

37817376642 is an abundant number, since it is smaller than the sum of its proper divisors (44120272788).

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

37817376642 is a wasteful number, since it uses less digits than its factorization.

37817376642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100965377 (or 2100965374 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 54.

The spelling of 37817376642 in words is "thirty-seven billion, eight hundred seventeen million, three hundred seventy-six thousand, six hundred forty-two".