19233147207 has 4 divisors (see below), whose sum is σ = 25644196280. Its totient is φ = 12822098136.

The previous prime is 19233147203. The next prime is 19233147229. The reversal of 19233147207 is 70274133291.

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

It is not a de Polignac number, because 19233147207 - 2² = 19233147203 is a prime.

It is a super-2 number, since 2×19233147207² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19233147203) 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, 3205524532 + ... + 3205524537.

It is an arithmetic number, because the mean of its divisors is an integer number (6411049070).

Almost surely, 2^19233147207 is an apocalyptic number.

19233147207 is a deficient number, since it is larger than the sum of its proper divisors (6411049073).

19233147207 is an equidigital number, since it uses as much as digits as its factorization.

19233147207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6411049072.

The product of its (nonzero) digits is 63504, while the sum is 39.

The spelling of 19233147207 in words is "nineteen billion, two hundred thirty-three million, one hundred forty-seven thousand, two hundred seven".