40809353193 has 24 divisors (see below), whose sum is σ = 67471055808. Its totient is φ = 23283895392.

The previous prime is 40809353177. The next prime is 40809353197. The reversal of 40809353193 is 39135390804.

40809353193 is a `hidden beast` number, since 408 + 0 + 9 + 3 + 53 + 193 = 666.

40809353193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40809353193 - 2⁴ = 40809353177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40809353197) 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, 454855 + ... + 537132.

It is an arithmetic number, because the mean of its divisors is an integer number (2811293992).

Almost surely, 2^40809353193 is an apocalyptic number.

It is an amenable number.

40809353193 is a deficient number, since it is larger than the sum of its proper divisors (26661702615).

40809353193 is a wasteful number, since it uses less digits than its factorization.

40809353193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992653 (or 992650 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 40809353193 in words is "forty billion, eight hundred nine million, three hundred fifty-three thousand, one hundred ninety-three".