40521920675 has 12 divisors (see below), whose sum is σ = 51316272096. Its totient is φ = 31727800800.

The previous prime is 40521920671. The next prime is 40521920693. The reversal of 40521920675 is 57602912504.

It is not a de Polignac number, because 40521920675 - 2² = 40521920671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40521920671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17242196 + ... + 17244545.

It is an arithmetic number, because the mean of its divisors is an integer number (4276356008).

Almost surely, 2^40521920675 is an apocalyptic number.

40521920675 is a deficient number, since it is larger than the sum of its proper divisors (10794351421).

40521920675 is a wasteful number, since it uses less digits than its factorization.

40521920675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34486798 (or 34486793 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 40521920675 in words is "forty billion, five hundred twenty-one million, nine hundred twenty thousand, six hundred seventy-five".