40705809391352 has 32 divisors (see below), whose sum is σ = 91019201126400. Its totient is φ = 16686853538784.

The previous prime is 40705809391339. The next prime is 40705809391361. The reversal of 40705809391352 is 25319390850704.

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 15801943352 + ... + 15801945927.

It is an arithmetic number, because the mean of its divisors is an integer number (2844350035200).

Almost surely, 2^{40705809391352} is an apocalyptic number.

It is an amenable number.

40705809391352 is an abundant number, since it is smaller than the sum of its proper divisors (50313391735048).

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

40705809391352 is a wasteful number, since it uses less digits than its factorization.

40705809391352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31603889315 (or 31603889311 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 56.

The spelling of 40705809391352 in words is "forty trillion, seven hundred five billion, eight hundred nine million, three hundred ninety-one thousand, three hundred fifty-two".