20312742194 has 16 divisors (see below), whose sum is σ = 32054011200. Its totient is φ = 9639943824.

The previous prime is 20312742193. The next prime is 20312742293. The reversal of 20312742194 is 49124721302.

It is not an unprimeable number, because it can be changed into a prime (20312742193) 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, 2964542 + ... + 2971385.

It is an arithmetic number, because the mean of its divisors is an integer number (2003375700).

Almost surely, 2^20312742194 is an apocalyptic number.

20312742194 is a deficient number, since it is larger than the sum of its proper divisors (11741269006).

20312742194 is a wasteful number, since it uses less digits than its factorization.

20312742194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5936017.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 20312742194 in words is "twenty billion, three hundred twelve million, seven hundred forty-two thousand, one hundred ninety-four".