40291632505 has 8 divisors (see below), whose sum is σ = 48351640392. Its totient is φ = 32232185088.

The previous prime is 40291632481. The next prime is 40291632529. The reversal of 40291632505 is 50523619204.

It is an interprime number because it is at equal distance from previous prime (40291632481) and next prime (40291632529).

It can be written as a sum of positive squares in 4 ways, for example, as 9994400784 + 30297231721 = 99972^2 + 174061^2 .

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 40291632505 - 2⁹ = 40291631993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38817 + ... + 286513.

It is an arithmetic number, because the mean of its divisors is an integer number (6043955049).

Almost surely, 2^40291632505 is an apocalyptic number.

It is an amenable number.

40291632505 is a deficient number, since it is larger than the sum of its proper divisors (8060007887).

40291632505 is a wasteful number, since it uses less digits than its factorization.

40291632505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280235.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 40291632505 in words is "forty billion, two hundred ninety-one million, six hundred thirty-two thousand, five hundred five".