41921297664 has 36 divisors (see below), whose sum is σ = 111571789056. Its totient is φ = 13973765632.

The previous prime is 41921297633. The next prime is 41921297689. The reversal of 41921297664 is 46679212914.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27291744 + ... + 27293279.

Almost surely, 2^41921297664 is an apocalyptic number.

It is an amenable number.

41921297664 is an abundant number, since it is smaller than the sum of its proper divisors (69650491392).

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

41921297664 is an equidigital number, since it uses as much as digits as its factorization.

41921297664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54585042 (or 54585028 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The spelling of 41921297664 in words is "forty-one billion, nine hundred twenty-one million, two hundred ninety-seven thousand, six hundred sixty-four".