2117940995 has 8 divisors (see below), whose sum is σ = 2584606320. Its totient is φ = 1665634720.

The previous prime is 2117940991. The next prime is 2117940997. The reversal of 2117940995 is 5990497112.

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

It is not a de Polignac number, because 2117940995 - 2² = 2117940991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2117940991) 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, 3589436 + ... + 3590025.

It is an arithmetic number, because the mean of its divisors is an integer number (323075790).

Almost surely, 2^2117940995 is an apocalyptic number.

2117940995 is a deficient number, since it is larger than the sum of its proper divisors (466665325).

2117940995 is an equidigital number, since it uses as much as digits as its factorization.

2117940995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7179525.

The product of its (nonzero) digits is 204120, while the sum is 47.

The square root of 2117940995 is about 46021.0929357398. The cubic root of 2117940995 is about 1284.2156325884.

The spelling of 2117940995 in words is "two billion, one hundred seventeen million, nine hundred forty thousand, nine hundred ninety-five".