37505139849 has 24 divisors (see below), whose sum is σ = 57370540032. Its totient is φ = 23528641920.

The previous prime is 37505139821. The next prime is 37505139863. The reversal of 37505139849 is 94893150573.

37505139849 is a `hidden beast` number, since 3 + 7 + 505 + 1 + 3 + 98 + 49 = 666.

It is not a de Polignac number, because 37505139849 - 2²⁴ = 37488362633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 37505139795 and 37505139804.

It is not an unprimeable number, because it can be changed into a prime (37505139809) 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 23 ways as a sum of consecutive naturals, for example, 1069504 + ... + 1104014.

It is an arithmetic number, because the mean of its divisors is an integer number (2390439168).

Almost surely, 2^37505139849 is an apocalyptic number.

It is an amenable number.

37505139849 is a deficient number, since it is larger than the sum of its proper divisors (19865400183).

37505139849 is a wasteful number, since it uses less digits than its factorization.

37505139849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41637 (or 41634 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 37505139849 in words is "thirty-seven billion, five hundred five million, one hundred thirty-nine thousand, eight hundred forty-nine".