36729391912131 has 4 divisors (see below), whose sum is σ = 48972522549512. Its totient is φ = 24486261274752.

The previous prime is 36729391912121. The next prime is 36729391912159. The reversal of 36729391912131 is 13121919392763.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 36729391912131 - 2¹⁸ = 36729391649987 is a prime.

It is a super-2 number, since 2×36729391912131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36729391912121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6121565318686 + ... + 6121565318691.

It is an arithmetic number, because the mean of its divisors is an integer number (12243130637378).

Almost surely, 2^{36729391912131} is an apocalyptic number.

36729391912131 is a deficient number, since it is larger than the sum of its proper divisors (12243130637381).

36729391912131 is a wasteful number, since it uses less digits than its factorization.

36729391912131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12243130637380.

The product of its digits is 3306744, while the sum is 57.

The spelling of 36729391912131 in words is "thirty-six trillion, seven hundred twenty-nine billion, three hundred ninety-one million, nine hundred twelve thousand, one hundred thirty-one".