56774386019 has 4 divisors (see below), whose sum is σ = 61141646496. Its totient is φ = 52407125544.

The previous prime is 56774386003. The next prime is 56774386033. The reversal of 56774386019 is 91068347765.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56774386019 - 2⁴ = 56774386003 is a prime.

It is a super-2 number, since 2×56774386019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56774386219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2183630219 + ... + 2183630244.

It is an arithmetic number, because the mean of its divisors is an integer number (15285411624).

Almost surely, 2^56774386019 is an apocalyptic number.

56774386019 is a deficient number, since it is larger than the sum of its proper divisors (4367260477).

56774386019 is a wasteful number, since it uses less digits than its factorization.

56774386019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4367260476.

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 56774386019 in words is "fifty-six billion, seven hundred seventy-four million, three hundred eighty-six thousand, nineteen".