19371922874 has 4 divisors (see below), whose sum is σ = 29057884314. Its totient is φ = 9685961436.

The previous prime is 19371922861. The next prime is 19371922883. The reversal of 19371922874 is 47822917391.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47822917391 = 22787 ⋅2098693.

It can be written as a sum of positive squares in only one way, i.e., 15361867249 + 4010055625 = 123943^2 + 63325^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4842980717 + ... + 4842980720.

Almost surely, 2^19371922874 is an apocalyptic number.

19371922874 is a deficient number, since it is larger than the sum of its proper divisors (9685961440).

19371922874 is an equidigital number, since it uses as much as digits as its factorization.

19371922874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9685961439.

The product of its digits is 1524096, while the sum is 53.

The spelling of 19371922874 in words is "nineteen billion, three hundred seventy-one million, nine hundred twenty-two thousand, eight hundred seventy-four".