40697997182 has 4 divisors (see below), whose sum is σ = 61046995776. Its totient is φ = 20348998590.

The previous prime is 40697997181. The next prime is 40697997187. The reversal of 40697997182 is 28179979604.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×40697997182² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40697997181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10174499294 + ... + 10174499297.

It is an arithmetic number, because the mean of its divisors is an integer number (15261748944).

Almost surely, 2^40697997182 is an apocalyptic number.

40697997182 is a deficient number, since it is larger than the sum of its proper divisors (20348998594).

40697997182 is a wasteful number, since it uses less digits than its factorization.

40697997182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20348998593.

The product of its (nonzero) digits is 13716864, while the sum is 62.

The spelling of 40697997182 in words is "forty billion, six hundred ninety-seven million, nine hundred ninety-seven thousand, one hundred eighty-two".