37678634217 has 16 divisors (see below), whose sum is σ = 63794513280. Its totient is φ = 21530648016.

The previous prime is 37678634207. The next prime is 37678634237. The reversal of 37678634217 is 71243687673.

It is not a de Polignac number, because 37678634217 - 2³⁵ = 3318895849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (37678634207) 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 15 ways as a sum of consecutive naturals, for example, 99678738 + ... + 99679115.

It is an arithmetic number, because the mean of its divisors is an integer number (3987157080).

Almost surely, 2^37678634217 is an apocalyptic number.

It is an amenable number.

37678634217 is a deficient number, since it is larger than the sum of its proper divisors (26115879063).

37678634217 is a wasteful number, since it uses less digits than its factorization.

37678634217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199357869 (or 199357863 counting only the distinct ones).

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

The spelling of 37678634217 in words is "thirty-seven billion, six hundred seventy-eight million, six hundred thirty-four thousand, two hundred seventeen".