35782765921 has 12 divisors (see below), whose sum is σ = 42592872432. Its totient is φ = 29957662728.

The previous prime is 35782765903. The next prime is 35782765943. The reversal of 35782765921 is 12956728753.

It is not a de Polignac number, because 35782765921 - 2¹⁵ = 35782733153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35782765951) 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, 8489295 + ... + 8493508.

It is an arithmetic number, because the mean of its divisors is an integer number (3549406036).

Almost surely, 2^35782765921 is an apocalyptic number.

It is an amenable number.

35782765921 is a deficient number, since it is larger than the sum of its proper divisors (6810106511).

35782765921 is a wasteful number, since it uses less digits than its factorization.

35782765921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16982860 (or 16982853 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 55.

The spelling of 35782765921 in words is "thirty-five billion, seven hundred eighty-two million, seven hundred sixty-five thousand, nine hundred twenty-one".