40640935494 has 16 divisors (see below), whose sum is σ = 83478678768. Its totient is φ = 13180843872.

The previous prime is 40640935487. The next prime is 40640935507. The reversal of 40640935494 is 49453904604.

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, 91533417 + ... + 91533860.

It is an arithmetic number, because the mean of its divisors is an integer number (5217417423).

Almost surely, 2^40640935494 is an apocalyptic number.

40640935494 is an abundant number, since it is smaller than the sum of its proper divisors (42837743274).

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

40640935494 is a wasteful number, since it uses less digits than its factorization.

40640935494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183067319.

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 40640935494 in words is "forty billion, six hundred forty million, nine hundred thirty-five thousand, four hundred ninety-four".