40880765687 has 4 divisors (see below), whose sum is σ = 42199500096. Its totient is φ = 39562031280.

The previous prime is 40880765677. The next prime is 40880765701. The reversal of 40880765687 is 78656708804.

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 40880765687 - 2⁴ = 40880765671 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 (40880765677) 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, 659367158 + ... + 659367219.

It is an arithmetic number, because the mean of its divisors is an integer number (10549875024).

Almost surely, 2^40880765687 is an apocalyptic number.

40880765687 is a deficient number, since it is larger than the sum of its proper divisors (1318734409).

40880765687 is a wasteful number, since it uses less digits than its factorization.

40880765687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318734408.

The product of its (nonzero) digits is 18063360, while the sum is 59.

The spelling of 40880765687 in words is "forty billion, eight hundred eighty million, seven hundred sixty-five thousand, six hundred eighty-seven".