40591672487 has 8 divisors (see below), whose sum is σ = 41264059680. Its totient is φ = 39922081920.

The previous prime is 40591672427. The next prime is 40591672493. The reversal of 40591672487 is 78427619504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40591672487 - 2²⁰ = 40590623911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40591672427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669878 + ... + 727955.

It is an arithmetic number, because the mean of its divisors is an integer number (5158007460).

Almost surely, 2^40591672487 is an apocalyptic number.

40591672487 is a deficient number, since it is larger than the sum of its proper divisors (672387193).

40591672487 is a wasteful number, since it uses less digits than its factorization.

40591672487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398313.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 40591672487 in words is "forty billion, five hundred ninety-one million, six hundred seventy-two thousand, four hundred eighty-seven".