36871270921 has 8 divisors (see below), whose sum is σ = 37593321480. Its totient is φ = 36150196992.

The previous prime is 36871270907. The next prime is 36871270949. The reversal of 36871270921 is 12907217863.

It can be written as a sum of positive squares in 4 ways, for example, as 11499559696 + 25371711225 = 107236^2 + 159285^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36871270921 - 2²¹ = 36869173769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36871270901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167680 + ... + 319153.

It is an arithmetic number, because the mean of its divisors is an integer number (4699165185).

Almost surely, 2^36871270921 is an apocalyptic number.

It is an amenable number.

36871270921 is a deficient number, since it is larger than the sum of its proper divisors (722050559).

36871270921 is a wasteful number, since it uses less digits than its factorization.

36871270921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488315.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 36871270921 in words is "thirty-six billion, eight hundred seventy-one million, two hundred seventy thousand, nine hundred twenty-one".