19931486704 has 40 divisors (see below), whose sum is σ = 41961044480. Its totient is φ = 9136670400.

The previous prime is 19931486693. The next prime is 19931486713. The reversal of 19931486704 is 40768413991.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1048062 + ... + 1066909.

It is an arithmetic number, because the mean of its divisors is an integer number (1049026112).

Almost surely, 2^19931486704 is an apocalyptic number.

It is an amenable number.

19931486704 is an abundant number, since it is smaller than the sum of its proper divisors (22029557776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19931486704 is a wasteful number, since it uses less digits than its factorization.

19931486704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115029 (or 2115023 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 19931486704 in words is "nineteen billion, nine hundred thirty-one million, four hundred eighty-six thousand, seven hundred four".