40785890379 has 32 divisors (see below), whose sum is σ = 59331363840. Its totient is φ = 24772167168.

The previous prime is 40785890329. The next prime is 40785890381. The reversal of 40785890379 is 97309858704.

It is not a de Polignac number, because 40785890379 - 2⁹ = 40785889867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40785890329) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1033912 + ... + 1072634.

It is an arithmetic number, because the mean of its divisors is an integer number (1854105120).

Almost surely, 2^40785890379 is an apocalyptic number.

40785890379 is a deficient number, since it is larger than the sum of its proper divisors (18545473461).

40785890379 is a wasteful number, since it uses less digits than its factorization.

40785890379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39091.

The product of its (nonzero) digits is 15240960, while the sum is 60.

The spelling of 40785890379 in words is "forty billion, seven hundred eighty-five million, eight hundred ninety thousand, three hundred seventy-nine".