40137003478 has 48 divisors (see below), whose sum is σ = 71299578672. Its totient is φ = 16798080000.

The previous prime is 40137003469. The next prime is 40137003521. The reversal of 40137003478 is 87430073104.

It is a super-2 number, since 2×40137003478² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1477458 + ... + 1504378.

It is an arithmetic number, because the mean of its divisors is an integer number (1485407889).

Almost surely, 2^40137003478 is an apocalyptic number.

40137003478 is a deficient number, since it is larger than the sum of its proper divisors (31162575194).

40137003478 is a wasteful number, since it uses less digits than its factorization.

40137003478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27361 (or 27348 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 40137003478 in words is "forty billion, one hundred thirty-seven million, three thousand, four hundred seventy-eight".