40825613694 has 16 divisors (see below), whose sum is σ = 83191817232. Its totient is φ = 13351772928.

The previous prime is 40825613693. The next prime is 40825613743. The reversal of 40825613694 is 49631652804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40825613693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64190899 + ... + 64191534.

It is an arithmetic number, because the mean of its divisors is an integer number (5199488577).

Almost surely, 2^40825613694 is an apocalyptic number.

40825613694 is an abundant number, since it is smaller than the sum of its proper divisors (42366203538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40825613694 is a wasteful number, since it uses less digits than its factorization.

40825613694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128382491.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 40825613694 in words is "forty billion, eight hundred twenty-five million, six hundred thirteen thousand, six hundred ninety-four".