40425464775021 has 16 divisors (see below), whose sum is σ = 54051157657728. Its totient is φ = 26875113636800.

The previous prime is 40425464775011. The next prime is 40425464775121. The reversal of 40425464775021 is 12057746452404.

It is a cyclic number.

It is not a de Polignac number, because 40425464775021 - 2¹⁰ = 40425464773997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40425464775011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6872190 + ... + 11317151.

It is an arithmetic number, because the mean of its divisors is an integer number (3378197353608).

Almost surely, 2^{40425464775021} is an apocalyptic number.

It is an amenable number.

40425464775021 is a deficient number, since it is larger than the sum of its proper divisors (13625692882707).

40425464775021 is a wasteful number, since it uses less digits than its factorization.

40425464775021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18191412.

The product of its (nonzero) digits is 7526400, while the sum is 51.

The spelling of 40425464775021 in words is "forty trillion, four hundred twenty-five billion, four hundred sixty-four million, seven hundred seventy-five thousand, twenty-one".