40180997488 has 10 divisors (see below), whose sum is σ = 77850682664. Its totient is φ = 20090498736.

The previous prime is 40180997429. The next prime is 40180997491. The reversal of 40180997488 is 88479908104.

It is a super-2 number, since 2×40180997488² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1255656156 + ... + 1255656187.

Almost surely, 2^40180997488 is an apocalyptic number.

It is an amenable number.

40180997488 is a deficient number, since it is larger than the sum of its proper divisors (37669685176).

40180997488 is a wasteful number, since it uses less digits than its factorization.

40180997488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511312351 (or 2511312345 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 58.

The spelling of 40180997488 in words is "forty billion, one hundred eighty million, nine hundred ninety-seven thousand, four hundred eighty-eight".