40012908945 has 16 divisors (see below), whose sum is σ = 64082654592. Its totient is φ = 21319551360.

The previous prime is 40012908911. The next prime is 40012908953. The reversal of 40012908945 is 54980921004.

It is not a de Polignac number, because 40012908945 - 2²³ = 40004520337 is a prime.

It is a super-2 number, since 2×40012908945² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40012908897 and 40012908906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1275661 + ... + 1306650.

It is an arithmetic number, because the mean of its divisors is an integer number (4005165912).

Almost surely, 2^40012908945 is an apocalyptic number.

It is an amenable number.

40012908945 is a deficient number, since it is larger than the sum of its proper divisors (24069745647).

40012908945 is a wasteful number, since it uses less digits than its factorization.

40012908945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583352.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 40012908945 in words is "forty billion, twelve million, nine hundred eight thousand, nine hundred forty-five".