19927770334 has 4 divisors (see below), whose sum is σ = 29891655504. Its totient is φ = 9963885166.

The previous prime is 19927770283. The next prime is 19927770341. The reversal of 19927770334 is 43307772991.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4981942582 + ... + 4981942585.

It is an arithmetic number, because the mean of its divisors is an integer number (7472913876).

Almost surely, 2^19927770334 is an apocalyptic number.

19927770334 is a deficient number, since it is larger than the sum of its proper divisors (9963885170).

19927770334 is an equidigital number, since it uses as much as digits as its factorization.

19927770334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9963885169.

The product of its (nonzero) digits is 2000376, while the sum is 52.

The spelling of 19927770334 in words is "nineteen billion, nine hundred twenty-seven million, seven hundred seventy thousand, three hundred thirty-four".