37994849973 has 24 divisors (see below), whose sum is σ = 56150679936. Its totient is φ = 24749604000.

The previous prime is 37994849953. The next prime is 37994849983.

It is a happy number.

37994849973 is a `hidden beast` number, since 3 + 7 + 99 + 48 + 499 + 7 + 3 = 666.

37994849973 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 37994849973 - 2³³ = 29404915381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37994849953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146265 + ... + 312062.

It is an arithmetic number, because the mean of its divisors is an integer number (2339611664).

Almost surely, 2^37994849973 is an apocalyptic number.

It is an amenable number.

37994849973 is a deficient number, since it is larger than the sum of its proper divisors (18155829963).

37994849973 is a wasteful number, since it uses less digits than its factorization.

37994849973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458545 (or 458542 counting only the distinct ones).

The product of its digits is 370355328, while the sum is 72.

The spelling of 37994849973 in words is "thirty-seven billion, nine hundred ninety-four million, eight hundred forty-nine thousand, nine hundred seventy-three".