40512502305 has 48 divisors (see below), whose sum is σ = 77654918016. Its totient is φ = 19373333760.

The previous prime is 40512502291. The next prime is 40512502309. The reversal of 40512502305 is 50320521504.

It is a happy number.

40512502305 is a `hidden beast` number, since 405 + 1 + 25 + 0 + 230 + 5 = 666.

It is not a de Polignac number, because 40512502305 - 2¹⁴ = 40512485921 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40512502309) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 524437 + ... + 596706.

It is an arithmetic number, because the mean of its divisors is an integer number (1617810792).

Almost surely, 2^40512502305 is an apocalyptic number.

40512502305 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40512502305 is a deficient number, since it is larger than the sum of its proper divisors (37142415711).

40512502305 is a wasteful number, since it uses less digits than its factorization.

40512502305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121238 (or 1121235 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 40512502305 in words is "forty billion, five hundred twelve million, five hundred two thousand, three hundred five".