40323973563 has 24 divisors (see below), whose sum is σ = 60850829520. Its totient is φ = 25698657600.

The previous prime is 40323973541. The next prime is 40323973603. The reversal of 40323973563 is 36537932304.

40323973563 is a `hidden beast` number, since 403 + 239 + 7 + 3 + 5 + 6 + 3 = 666.

It is not a de Polignac number, because 40323973563 - 2¹⁷ = 40323842491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40323973513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 738481 + ... + 791202.

It is an arithmetic number, because the mean of its divisors is an integer number (2535451230).

Almost surely, 2^40323973563 is an apocalyptic number.

40323973563 is a deficient number, since it is larger than the sum of its proper divisors (20526855957).

40323973563 is a wasteful number, since it uses less digits than its factorization.

40323973563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529819 (or 1529816 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 45.

The spelling of 40323973563 in words is "forty billion, three hundred twenty-three million, nine hundred seventy-three thousand, five hundred sixty-three".