40345257185 has 16 divisors (see below), whose sum is σ = 51248514240. Its totient is φ = 30438502080.

The previous prime is 40345257181. The next prime is 40345257193. The reversal of 40345257185 is 58175254304.

It is not a de Polignac number, because 40345257185 - 2² = 40345257181 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40345257181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3229151 + ... + 3241620.

It is an arithmetic number, because the mean of its divisors is an integer number (3203032140).

Almost surely, 2^40345257185 is an apocalyptic number.

It is an amenable number.

40345257185 is a deficient number, since it is larger than the sum of its proper divisors (10903257055).

40345257185 is a wasteful number, since it uses less digits than its factorization.

40345257185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6470848.

The product of its (nonzero) digits is 672000, while the sum is 44.

The spelling of 40345257185 in words is "forty billion, three hundred forty-five million, two hundred fifty-seven thousand, one hundred eighty-five".