19040757949768 has 16 divisors (see below), whose sum is σ = 35701475420160. Its totient is φ = 9520364504400.

The previous prime is 19040757949729. The next prime is 19040757949771. The reversal of 19040757949768 is 86794975704091.

It is a super-2 number, since 2×19040757949768² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19040757949694 and 19040757949703.

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, 5539533 + ... + 8292643.

It is an arithmetic number, because the mean of its divisors is an integer number (2231342213760).

Almost surely, 2^{19040757949768} is an apocalyptic number.

It is an amenable number.

19040757949768 is a deficient number, since it is larger than the sum of its proper divisors (16660717470392).

19040757949768 is a wasteful number, since it uses less digits than its factorization.

19040757949768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3617628 (or 3617624 counting only the distinct ones).

The product of its (nonzero) digits is 960180480, while the sum is 76.

The spelling of 19040757949768 in words is "nineteen trillion, forty billion, seven hundred fifty-seven million, nine hundred forty-nine thousand, seven hundred sixty-eight".