36421500644 has 24 divisors (see below), whose sum is σ = 65345349048. Its totient is φ = 17752124160.

The previous prime is 36421500623. The next prime is 36421500667. The reversal of 36421500644 is 44600512463.

It can be written as a sum of positive squares in 4 ways, for example, as 31360000 + 36390140644 = 5600^2 + 190762^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113102 + ... + 292634.

It is an arithmetic number, because the mean of its divisors is an integer number (2722722877).

Almost surely, 2^36421500644 is an apocalyptic number.

It is an amenable number.

36421500644 is a deficient number, since it is larger than the sum of its proper divisors (28923848404).

36421500644 is a wasteful number, since it uses less digits than its factorization.

36421500644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180815 (or 180813 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 36421500644 in words is "thirty-six billion, four hundred twenty-one million, five hundred thousand, six hundred forty-four".