40177797136 has 15 divisors (see below), whose sum is σ = 77846035423. Its totient is φ = 20088497680.

The previous prime is 40177797113. The next prime is 40177797197. The reversal of 40177797136 is 63179777104.

The square root of 40177797136 is 200444.

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

It is a super-2 number, since 2×40177797136² (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 2 ways as a sum of consecutive naturals, for example, 776721 + ... + 826831.

Almost surely, 2^40177797136 is an apocalyptic number.

40177797136 is the 200444-th square number.

It is an amenable number.

40177797136 is a deficient number, since it is larger than the sum of its proper divisors (37668238287).

40177797136 is an frugal number, since it uses more digits than its factorization.

40177797136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100230 (or 50113 counting only the distinct ones).

The product of its (nonzero) digits is 1555848, while the sum is 52.

The spelling of 40177797136 in words is "forty billion, one hundred seventy-seven million, seven hundred ninety-seven thousand, one hundred thirty-six".