40277278864 has 45 divisors (see below), whose sum is σ = 78843335059. Its totient is φ = 19932729440.

The previous prime is 40277278843. The next prime is 40277278889. The reversal of 40277278864 is 46887277204.

The square root of 40277278864 is 200692.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×40277278864² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 105162417 + ... + 105162799.

Almost surely, 2^40277278864 is an apocalyptic number.

40277278864 is the 200692-nd square number.

It is an amenable number.

40277278864 is a deficient number, since it is larger than the sum of its proper divisors (38566056195).

40277278864 is an frugal number, since it uses more digits than its factorization.

40277278864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 8429568, while the sum is 55.

It can be divided in two parts, 402772 and 78864, that added together give a square (481636 = 694²).

The spelling of 40277278864 in words is "forty billion, two hundred seventy-seven million, two hundred seventy-eight thousand, eight hundred sixty-four".