40507521742323 has 16 divisors (see below), whose sum is σ = 60011468882560. Its totient is φ = 27004867992648.

The previous prime is 40507521742291. The next prime is 40507521742399. The reversal of 40507521742323 is 32324712570504.

40507521742323 is a `hidden beast` number, since 4 + 0 + 5 + 0 + 7 + 5 + 217 + 423 + 2 + 3 = 666.

It is not a de Polignac number, because 40507521742323 - 2⁵ = 40507521742291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40507521242323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1119936 + ... + 9070242.

It is an arithmetic number, because the mean of its divisors is an integer number (3750716805160).

Almost surely, 2^{40507521742323} is an apocalyptic number.

40507521742323 is a deficient number, since it is larger than the sum of its proper divisors (19503947140237).

40507521742323 is a wasteful number, since it uses less digits than its factorization.

40507521742323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8139023 (or 8139017 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 45.

The spelling of 40507521742323 in words is "forty trillion, five hundred seven billion, five hundred twenty-one million, seven hundred forty-two thousand, three hundred twenty-three".