40264290981 has 12 divisors (see below), whose sum is σ = 60688207008. Its totient is φ = 25675779624.

The previous prime is 40264290953. The next prime is 40264291031. The reversal of 40264290981 is 18909246204.

It is not a de Polignac number, because 40264290981 - 2⁵ = 40264290949 is a prime.

It is a super-2 number, since 2×40264290981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40264291981) 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, 97256535 + ... + 97256948.

It is an arithmetic number, because the mean of its divisors is an integer number (5057350584).

Almost surely, 2^40264290981 is an apocalyptic number.

It is an amenable number.

40264290981 is a deficient number, since it is larger than the sum of its proper divisors (20423916027).

40264290981 is a wasteful number, since it uses less digits than its factorization.

40264290981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194513512 (or 194513509 counting only the distinct ones).

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

The spelling of 40264290981 in words is "forty billion, two hundred sixty-four million, two hundred ninety thousand, nine hundred eighty-one".