36720334531 has 2 divisors, whose sum is σ = 36720334532. Its totient is φ = 36720334530.

The previous prime is 36720334493. The next prime is 36720334549. The reversal of 36720334531 is 13543302763.

It is a happy number.

36720334531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (13543302763) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36720334531 - 2¹¹ = 36720332483 is a prime.

It is a super-2 number, since 2×36720334531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36720334031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18360167265 + 18360167266.

It is an arithmetic number, because the mean of its divisors is an integer number (18360167266).

Almost surely, 2^36720334531 is an apocalyptic number.

36720334531 is a deficient number, since it is larger than the sum of its proper divisors (1).

36720334531 is an equidigital number, since it uses as much as digits as its factorization.

36720334531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 37.

The spelling of 36720334531 in words is "thirty-six billion, seven hundred twenty million, three hundred thirty-four thousand, five hundred thirty-one".