40878520507 has 4 divisors (see below), whose sum is σ = 44594749656. Its totient is φ = 37162291360.

The previous prime is 40878520493. The next prime is 40878520513. The reversal of 40878520507 is 70502587804.

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 40878520507 - 2¹¹ = 40878518459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40878520607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1858114558 + ... + 1858114579.

It is an arithmetic number, because the mean of its divisors is an integer number (11148687414).

Almost surely, 2^40878520507 is an apocalyptic number.

40878520507 is a deficient number, since it is larger than the sum of its proper divisors (3716229149).

40878520507 is a wasteful number, since it uses less digits than its factorization.

40878520507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716229148.

The product of its (nonzero) digits is 627200, while the sum is 46.

The spelling of 40878520507 in words is "forty billion, eight hundred seventy-eight million, five hundred twenty thousand, five hundred seven".