40641624131 has 4 divisors (see below), whose sum is σ = 42780657000. Its totient is φ = 38502591264.

The previous prime is 40641624119. The next prime is 40641624161. The reversal of 40641624131 is 13142614604.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40641624131 is a prime.

It is a super-3 number, since 3×40641624131³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40641624161) 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, 1069516406 + ... + 1069516443.

It is an arithmetic number, because the mean of its divisors is an integer number (10695164250).

Almost surely, 2^40641624131 is an apocalyptic number.

40641624131 is a deficient number, since it is larger than the sum of its proper divisors (2139032869).

40641624131 is a wasteful number, since it uses less digits than its factorization.

40641624131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139032868.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 40641624131 in words is "forty billion, six hundred forty-one million, six hundred twenty-four thousand, one hundred thirty-one".