40385077712 has 40 divisors (see below), whose sum is σ = 93312110976. Its totient is φ = 16555372416.

The previous prime is 40385077709. The next prime is 40385077727. The reversal of 40385077712 is 21777058304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7836143 + ... + 7841294.

Almost surely, 2^40385077712 is an apocalyptic number.

It is an amenable number.

40385077712 is an abundant number, since it is smaller than the sum of its proper divisors (52927033264).

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

40385077712 is a wasteful number, since it uses less digits than its factorization.

40385077712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15677475 (or 15677469 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 44.

The spelling of 40385077712 in words is "forty billion, three hundred eighty-five million, seventy-seven thousand, seven hundred twelve".