19746345368 has 8 divisors (see below), whose sum is σ = 37024397580. Its totient is φ = 9873172680.

The previous prime is 19746345341. The next prime is 19746345383. The reversal of 19746345368 is 86354364791.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1234146578 + ... + 1234146593.

Almost surely, 2^19746345368 is an apocalyptic number.

It is an amenable number.

19746345368 is a deficient number, since it is larger than the sum of its proper divisors (17278052212).

19746345368 is a wasteful number, since it uses less digits than its factorization.

19746345368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468293177 (or 2468293173 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 56.

The spelling of 19746345368 in words is "nineteen billion, seven hundred forty-six million, three hundred forty-five thousand, three hundred sixty-eight".