37209874945 has 4 divisors (see below), whose sum is σ = 44651849940. Its totient is φ = 29767899952.

The previous prime is 37209874937. The next prime is 37209874951. The reversal of 37209874945 is 54947890273.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54947890273 = 29 ⋅1894754837.

It can be written as a sum of positive squares in 2 ways, for example, as 22923171216 + 14286703729 = 151404^2 + 119527^2 .

It is a cyclic number.

It is not a de Polignac number, because 37209874945 - 2³ = 37209874937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 37209874945.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3720987490 + ... + 3720987499.

It is an arithmetic number, because the mean of its divisors is an integer number (11162962485).

Almost surely, 2^37209874945 is an apocalyptic number.

It is an amenable number.

37209874945 is a deficient number, since it is larger than the sum of its proper divisors (7441974995).

37209874945 is an equidigital number, since it uses as much as digits as its factorization.

37209874945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7441974994.

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 37209874945 in words is "thirty-seven billion, two hundred nine million, eight hundred seventy-four thousand, nine hundred forty-five".