18940656295 has 8 divisors (see below), whose sum is σ = 24795041040. Its totient is φ = 13775022720.

The previous prime is 18940656283. The next prime is 18940656299. The reversal of 18940656295 is 59265604981.

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

It is not a de Polignac number, because 18940656295 - 2⁷ = 18940656167 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55), and also a Moran number because the ratio is a prime number: 344375569 = 18940656295 / (1 + 8 + 9 + 4 + 0 + 6 + 5 + 6 + 2 + 9 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18940656299) 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, 172187730 + ... + 172187839.

It is an arithmetic number, because the mean of its divisors is an integer number (3099380130).

Almost surely, 2^18940656295 is an apocalyptic number.

18940656295 is a deficient number, since it is larger than the sum of its proper divisors (5854384745).

18940656295 is a wasteful number, since it uses less digits than its factorization.

18940656295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344375585.

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 18940656295 in words is "eighteen billion, nine hundred forty million, six hundred fifty-six thousand, two hundred ninety-five".