37362513821 has 2 divisors, whose sum is σ = 37362513822. Its totient is φ = 37362513820.

The previous prime is 37362513809. The next prime is 37362513857. The reversal of 37362513821 is 12831526373.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25088976025 + 12273537796 = 158395^2 + 110786^2 .

It is a cyclic number.

It is not a de Polignac number, because 37362513821 - 2¹⁴ = 37362497437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37362513871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18681256910 + 18681256911.

It is an arithmetic number, because the mean of its divisors is an integer number (18681256911).

Almost surely, 2^37362513821 is an apocalyptic number.

It is an amenable number.

37362513821 is a deficient number, since it is larger than the sum of its proper divisors (1).

37362513821 is an equidigital number, since it uses as much as digits as its factorization.

37362513821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

The spelling of 37362513821 in words is "thirty-seven billion, three hundred sixty-two million, five hundred thirteen thousand, eight hundred twenty-one".