6441926091264 has 100 divisors (see below), whose sum is σ = 19227453281454. Its totient is φ = 2147308683264.

The previous prime is 6441926091257. The next prime is 6441926091281. The reversal of 6441926091264 is 4621906291446.

6441926091264 is a `hidden beast` number, since 6 + 4 + 4 + 1 + 9 + 2 + 609 + 1 + 26 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6381646020864 + 60280070400 = 2526192^2 + 245520^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 6441926091264.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 77624497 + ... + 77707440.

Almost surely, 2^{6441926091264} is an apocalyptic number.

6441926091264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6441926091264 is an abundant number, since it is smaller than the sum of its proper divisors (12785527190190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6441926091264 is an equidigital number, since it uses as much as digits as its factorization.

6441926091264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155331967 (or 155331942 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 6441926091264 in words is "six trillion, four hundred forty-one billion, nine hundred twenty-six million, ninety-one thousand, two hundred sixty-four".