19222617961 has 24 divisors (see below), whose sum is σ = 20928754880. Its totient is φ = 17642403072.

The previous prime is 19222617941. The next prime is 19222617979. The reversal of 19222617961 is 16971622291.

It is not a de Polignac number, because 19222617961 - 2³¹ = 17075134313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19222617901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13283740 + ... + 13285186.

Almost surely, 2^19222617961 is an apocalyptic number.

It is an amenable number.

19222617961 is a deficient number, since it is larger than the sum of its proper divisors (1706136919).

19222617961 is a wasteful number, since it uses less digits than its factorization.

19222617961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593 (or 2576 counting only the distinct ones).

The product of its digits is 163296, while the sum is 46.

The spelling of 19222617961 in words is "nineteen billion, two hundred twenty-two million, six hundred seventeen thousand, nine hundred sixty-one".