40297136817 has 8 divisors (see below), whose sum is σ = 61405160896. Its totient is φ = 23026935312.

The previous prime is 40297136779. The next prime is 40297136819. The reversal of 40297136817 is 71863179204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40297136817 - 2²⁰ = 40296088241 is a prime.

It is a super-3 number, since 3×40297136817³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40297136819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959455618 + ... + 959455659.

It is an arithmetic number, because the mean of its divisors is an integer number (7675645112).

Almost surely, 2^40297136817 is an apocalyptic number.

It is an amenable number.

40297136817 is a deficient number, since it is larger than the sum of its proper divisors (21108024079).

40297136817 is a wasteful number, since it uses less digits than its factorization.

40297136817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918911287.

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 40297136817 in words is "forty billion, two hundred ninety-seven million, one hundred thirty-six thousand, eight hundred seventeen".