36646976357 has 4 divisors (see below), whose sum is σ = 36695387916. Its totient is φ = 36598564800.

The previous prime is 36646976321. The next prime is 36646976371. The reversal of 36646976357 is 75367964663.

It is a Cunningham number, because it is equal to 191434²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75367964663 = 4793 ⋅15724591.

It can be written as a sum of positive squares in 2 ways, for example, as 22640017156 + 14006959201 = 150466^2 + 118351^2 .

It is a cyclic number.

It is not a de Polignac number, because 36646976357 - 2²⁰ = 36645927781 is a prime.

It is a super-2 number, since 2×36646976357² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36646976357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36646976057) 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, 24204644 + ... + 24206157.

It is an arithmetic number, because the mean of its divisors is an integer number (9173846979).

Almost surely, 2^36646976357 is an apocalyptic number.

It is an amenable number.

36646976357 is a deficient number, since it is larger than the sum of its proper divisors (48411559).

36646976357 is an equidigital number, since it uses as much as digits as its factorization.

36646976357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48411558.

The product of its digits is 102876480, while the sum is 62.

The spelling of 36646976357 in words is "thirty-six billion, six hundred forty-six million, nine hundred seventy-six thousand, three hundred fifty-seven".