40415975456 has 12 divisors (see below), whose sum is σ = 79568951742. Its totient is φ = 20207987712.

The previous prime is 40415975351. The next prime is 40415975471. The reversal of 40415975456 is 65457951404.

It can be written as a sum of positive squares in only one way, i.e., 31406928400 + 9009047056 = 177220^2 + 94916^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631499585 + ... + 631499648.

Almost surely, 2^40415975456 is an apocalyptic number.

It is an amenable number.

40415975456 is a deficient number, since it is larger than the sum of its proper divisors (39152976286).

40415975456 is a wasteful number, since it uses less digits than its factorization.

40415975456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262999243 (or 1262999235 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 50.

The spelling of 40415975456 in words is "forty billion, four hundred fifteen million, nine hundred seventy-five thousand, four hundred fifty-six".