40163631842531 has 4 divisors (see below), whose sum is σ = 40164783654864. Its totient is φ = 40162480030200.

The previous prime is 40163631842519. The next prime is 40163631842539. The reversal of 40163631842531 is 13524813636104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40163631842531 - 2²⁶ = 40163564733667 is a prime.

It is a super-2 number, since 2×40163631842531² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40163631842539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575853860 + ... + 575923601.

It is an arithmetic number, because the mean of its divisors is an integer number (10041195913716).

Almost surely, 2^{40163631842531} is an apocalyptic number.

40163631842531 is a deficient number, since it is larger than the sum of its proper divisors (1151812333).

40163631842531 is a wasteful number, since it uses less digits than its factorization.

40163631842531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151812332.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 40163631842531 in words is "forty trillion, one hundred sixty-three billion, six hundred thirty-one million, eight hundred forty-two thousand, five hundred thirty-one".