36076971721 has 24 divisors (see below), whose sum is σ = 42974133120. Its totient is φ = 30184594272.

The previous prime is 36076971713. The next prime is 36076971727. The reversal of 36076971721 is 12717967063.

36076971721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 36076971721 - 2³ = 36076971713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36076971727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 852171 + ... + 893503.

It is an arithmetic number, because the mean of its divisors is an integer number (1790588880).

Almost surely, 2^36076971721 is an apocalyptic number.

It is an amenable number.

36076971721 is a deficient number, since it is larger than the sum of its proper divisors (6897161399).

36076971721 is a wasteful number, since it uses less digits than its factorization.

36076971721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41773 (or 41766 counting only the distinct ones).

The product of its (nonzero) digits is 666792, while the sum is 49.

The spelling of 36076971721 in words is "thirty-six billion, seventy-six million, nine hundred seventy-one thousand, seven hundred twenty-one".