19964922946 has 8 divisors (see below), whose sum is σ = 29956406544. Its totient is φ = 9979454100.

The previous prime is 19964922917. The next prime is 19964922949. The reversal of 19964922946 is 64922946991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (19964922949) 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, 1495380 + ... + 1508671.

It is an arithmetic number, because the mean of its divisors is an integer number (3744550818).

Almost surely, 2^19964922946 is an apocalyptic number.

19964922946 is a deficient number, since it is larger than the sum of its proper divisors (9991483598).

19964922946 is a wasteful number, since it uses less digits than its factorization.

19964922946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007376.

The product of its digits is 15116544, while the sum is 61.

The spelling of 19964922946 in words is "nineteen billion, nine hundred sixty-four million, nine hundred twenty-two thousand, nine hundred forty-six".