40345981704 has 96 divisors (see below), whose sum is σ = 124913118720. Its totient is φ = 11524405248.

The previous prime is 40345981703. The next prime is 40345981723. The reversal of 40345981704 is 40718954304.

40345981704 is a `hidden beast` number, since 40 + 3 + 4 + 598 + 17 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 40345981704.

It is not an unprimeable number, because it can be changed into a prime (40345981703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2523624 + ... + 2539560.

It is an arithmetic number, because the mean of its divisors is an integer number (1301178320).

Almost surely, 2^40345981704 is an apocalyptic number.

It is an amenable number.

40345981704 is an abundant number, since it is smaller than the sum of its proper divisors (84567137016).

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

40345981704 is a wasteful number, since it uses less digits than its factorization.

40345981704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20979 (or 20972 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 40345981704 in words is "forty billion, three hundred forty-five million, nine hundred eighty-one thousand, seven hundred four".