19077396456 has 16 divisors (see below), whose sum is σ = 47693491200. Its totient is φ = 6359132144.

The previous prime is 19077396431. The next prime is 19077396517. The reversal of 19077396456 is 65469377091.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 19077396396 and 19077396405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397445736 + ... + 397445783.

It is an arithmetic number, because the mean of its divisors is an integer number (2980843200).

Almost surely, 2^19077396456 is an apocalyptic number.

It is an amenable number.

19077396456 is an abundant number, since it is smaller than the sum of its proper divisors (28616094744).

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

19077396456 is a wasteful number, since it uses less digits than its factorization.

19077396456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794891528 (or 794891524 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 57.

The spelling of 19077396456 in words is "nineteen billion, seventy-seven million, three hundred ninety-six thousand, four hundred fifty-six".