40996420821 has 12 divisors (see below), whose sum is σ = 62333739520. Its totient is φ = 25892476200.

The previous prime is 40996420813. The next prime is 40996420847. The reversal of 40996420821 is 12802469904.

It is not a de Polignac number, because 40996420821 - 2³ = 40996420813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40996420021) 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, 119872405 + ... + 119872746.

Almost surely, 2^40996420821 is an apocalyptic number.

It is an amenable number.

40996420821 is a deficient number, since it is larger than the sum of its proper divisors (21337318699).

40996420821 is a wasteful number, since it uses less digits than its factorization.

40996420821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239745176 (or 239745173 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 40996420821 in words is "forty billion, nine hundred ninety-six million, four hundred twenty thousand, eight hundred twenty-one".