19315934320764 has 24 divisors (see below), whose sum is σ = 46624669050960. Its totient is φ = 6216622539904.

The previous prime is 19315934320687. The next prime is 19315934320777. The reversal of 19315934320764 is 46702343951391.

It is a super-2 number, since 2×19315934320764² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27752778849 + ... + 27752779544.

It is an arithmetic number, because the mean of its divisors is an integer number (1942694543790).

Almost surely, 2^{19315934320764} is an apocalyptic number.

It is an amenable number.

19315934320764 is an abundant number, since it is smaller than the sum of its proper divisors (27308734730196).

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

19315934320764 is a wasteful number, since it uses less digits than its factorization.

19315934320764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55505558429 (or 55505558427 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 57.

The spelling of 19315934320764 in words is "nineteen trillion, three hundred fifteen billion, nine hundred thirty-four million, three hundred twenty thousand, seven hundred sixty-four".