40143745568 has 12 divisors (see below), whose sum is σ = 79032999150. Its totient is φ = 20071872768.

The previous prime is 40143745507. The next prime is 40143745613. The reversal of 40143745568 is 86554734104.

It can be written as a sum of positive squares in only one way, i.e., 23756673424 + 16387072144 = 154132^2 + 128012^2 .

It is a super-2 number, since 2×40143745568² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627245993 + ... + 627246056.

Almost surely, 2^40143745568 is an apocalyptic number.

It is an amenable number.

40143745568 is a deficient number, since it is larger than the sum of its proper divisors (38889253582).

40143745568 is a wasteful number, since it uses less digits than its factorization.

40143745568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254492059 (or 1254492051 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 40143745568 in words is "forty billion, one hundred forty-three million, seven hundred forty-five thousand, five hundred sixty-eight".