19497245884516 has 24 divisors (see below), whose sum is σ = 35296911054720. Its totient is φ = 9412417446432.

The previous prime is 19497245884507. The next prime is 19497245884531. The reversal of 19497245884516 is 61548854279491.

It is a hoax number, since the sum of its digits (73) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43448805 + ... + 43895251.

It is an arithmetic number, because the mean of its divisors is an integer number (1470704627280).

Almost surely, 2^{19497245884516} is an apocalyptic number.

It is an amenable number.

19497245884516 is a deficient number, since it is larger than the sum of its proper divisors (15799665170204).

19497245884516 is a wasteful number, since it uses less digits than its factorization.

19497245884516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822963 (or 822961 counting only the distinct ones).

The product of its digits is 696729600, while the sum is 73.

The spelling of 19497245884516 in words is "nineteen trillion, four hundred ninety-seven billion, two hundred forty-five million, eight hundred eighty-four thousand, five hundred sixteen".