19497063116 has 12 divisors (see below), whose sum is σ = 34131537888. Its totient is φ = 9745195152.

The previous prime is 19497063107. The next prime is 19497063121. The reversal of 19497063116 is 61136079491.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 820931 + ... + 844346.

It is an arithmetic number, because the mean of its divisors is an integer number (2844294824).

Almost surely, 2^19497063116 is an apocalyptic number.

It is an amenable number.

19497063116 is a deficient number, since it is larger than the sum of its proper divisors (14634474772).

19497063116 is a wasteful number, since it uses less digits than its factorization.

19497063116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668208 (or 1668206 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 19497063116 in words is "nineteen billion, four hundred ninety-seven million, sixty-three thousand, one hundred sixteen".