40641746431 has 16 divisors (see below), whose sum is σ = 48185010720. Its totient is φ = 33792059520.

The previous prime is 40641746407. The next prime is 40641746437. The reversal of 40641746431 is 13464714604.

It is a cyclic number.

It is not a de Polignac number, because 40641746431 - 2¹⁷ = 40641615359 is a prime.

It is a super-2 number, since 2×40641746431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40641746437) 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, 1288120 + ... + 1319293.

It is an arithmetic number, because the mean of its divisors is an integer number (3011563170).

Almost surely, 2^40641746431 is an apocalyptic number.

40641746431 is a deficient number, since it is larger than the sum of its proper divisors (7543264289).

40641746431 is a wasteful number, since it uses less digits than its factorization.

40641746431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607546.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 40641746431 in words is "forty billion, six hundred forty-one million, seven hundred forty-six thousand, four hundred thirty-one".