40745015670 has 64 divisors (see below), whose sum is σ = 100230359040. Its totient is φ = 10594272000.

The previous prime is 40745015657. The next prime is 40745015713. The reversal of 40745015670 is 7651054704.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2391241 + ... + 2408219.

It is an arithmetic number, because the mean of its divisors is an integer number (1566099360).

Almost surely, 2^40745015670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40745015670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50115179520).

40745015670 is an abundant number, since it is smaller than the sum of its proper divisors (59485343370).

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

40745015670 is a wasteful number, since it uses less digits than its factorization.

40745015670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18981.

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 40745015670 in words is "forty billion, seven hundred forty-five million, fifteen thousand, six hundred seventy".