40549880694 has 16 divisors (see below), whose sum is σ = 81718845120. Its totient is φ = 13413446280.

The previous prime is 40549880689. The next prime is 40549880711. The reversal of 40549880694 is 49608894504.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 25794304 + ... + 25795875.

It is an arithmetic number, because the mean of its divisors is an integer number (5107427820).

Almost surely, 2^40549880694 is an apocalyptic number.

40549880694 is an abundant number, since it is smaller than the sum of its proper divisors (41168964426).

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

40549880694 is a wasteful number, since it uses less digits than its factorization.

40549880694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51590315.

The product of its (nonzero) digits is 9953280, while the sum is 57.

The spelling of 40549880694 in words is "forty billion, five hundred forty-nine million, eight hundred eighty thousand, six hundred ninety-four".