36912698721 has 12 divisors (see below), whose sum is σ = 53320260240. Its totient is φ = 24607580760.

The previous prime is 36912698687. The next prime is 36912698747. The reversal of 36912698721 is 12789621963.

36912698721 is a `hidden beast` number, since 369 + 126 + 98 + 72 + 1 = 666.

It is not a de Polignac number, because 36912698721 - 2²² = 36908504417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36912298721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 279370 + ... + 389708.

It is an arithmetic number, because the mean of its divisors is an integer number (4443355020).

Almost surely, 2^36912698721 is an apocalyptic number.

It is an amenable number.

36912698721 is a deficient number, since it is larger than the sum of its proper divisors (16407561519).

36912698721 is a wasteful number, since it uses less digits than its factorization.

36912698721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147516 (or 147513 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The spelling of 36912698721 in words is "thirty-six billion, nine hundred twelve million, six hundred ninety-eight thousand, seven hundred twenty-one".