19672914893 has 4 divisors (see below), whose sum is σ = 19909938048. Its totient is φ = 19435891740.

The previous prime is 19672914889. The next prime is 19672914923. The reversal of 19672914893 is 39841927691.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39841927691 = 661 ⋅60275231.

It is a cyclic number.

It is not a de Polignac number, because 19672914893 - 2² = 19672914889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19672914853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118511453 + ... + 118511618.

It is an arithmetic number, because the mean of its divisors is an integer number (4977484512).

Almost surely, 2^19672914893 is an apocalyptic number.

It is an amenable number.

19672914893 is a deficient number, since it is larger than the sum of its proper divisors (237023155).

19672914893 is an equidigital number, since it uses as much as digits as its factorization.

19672914893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237023154.

The product of its digits is 5878656, while the sum is 59.

The spelling of 19672914893 in words is "nineteen billion, six hundred seventy-two million, nine hundred fourteen thousand, eight hundred ninety-three".