36440547264621 has 6 divisors (see below), whose sum is σ = 52636346048910. Its totient is φ = 24293698176408.

The previous prime is 36440547264613. The next prime is 36440547264659. The reversal of 36440547264621 is 12646274504463.

36440547264621 is a `hidden beast` number, since 3 + 6 + 4 + 4 + 0 + 5 + 4 + 7 + 2 + 6 + 4 + 621 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36414719560521 + 25827704100 = 6034461^2 + 160710^2 .

It is not a de Polignac number, because 36440547264621 - 2³ = 36440547264613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36440547264601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2024474848026 + ... + 2024474848043.

It is an arithmetic number, because the mean of its divisors is an integer number (8772724341485).

Almost surely, 2^{36440547264621} is an apocalyptic number.

It is an amenable number.

36440547264621 is a deficient number, since it is larger than the sum of its proper divisors (16195798784289).

36440547264621 is a wasteful number, since it uses less digits than its factorization.

36440547264621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4048949696075 (or 4048949696072 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 54.

The spelling of 36440547264621 in words is "thirty-six trillion, four hundred forty billion, five hundred forty-seven million, two hundred sixty-four thousand, six hundred twenty-one".