40890868695 has 48 divisors (see below), whose sum is σ = 73427796000. Its totient is φ = 21025939200.

The previous prime is 40890868679. The next prime is 40890868703. The reversal of 40890868695 is 59686809804.

40890868695 is a `hidden beast` number, since 408 + 90 + 86 + 8 + 69 + 5 = 666.

It is not a de Polignac number, because 40890868695 - 2⁴ = 40890868679 is a prime.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 892456 + ... + 937154.

It is an arithmetic number, because the mean of its divisors is an integer number (1529745750).

Almost surely, 2^40890868695 is an apocalyptic number.

40890868695 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40890868695 is a deficient number, since it is larger than the sum of its proper divisors (32536927305).

40890868695 is a wasteful number, since it uses less digits than its factorization.

40890868695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45440 (or 45437 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 40890868695 in words is "forty billion, eight hundred ninety million, eight hundred sixty-eight thousand, six hundred ninety-five".