19320422657 has 4 divisors (see below), whose sum is σ = 19507999680. Its totient is φ = 19132845636.

The previous prime is 19320422617. The next prime is 19320422687. The reversal of 19320422657 is 75622402391.

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.

It is a cyclic number.

It is not a de Polignac number, because 19320422657 - 2¹⁸ = 19320160513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19320422617) 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, 93788357 + ... + 93788562.

It is an arithmetic number, because the mean of its divisors is an integer number (4876999920).

Almost surely, 2^19320422657 is an apocalyptic number.

It is an amenable number.

19320422657 is a deficient number, since it is larger than the sum of its proper divisors (187577023).

19320422657 is a wasteful number, since it uses less digits than its factorization.

19320422657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187577022.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 19320422657 in words is "nineteen billion, three hundred twenty million, four hundred twenty-two thousand, six hundred fifty-seven".