55743777774 has 16 divisors (see below), whose sum is σ = 123875061840. Its totient is φ = 18581259240.

The previous prime is 55743777769. The next prime is 55743777797. The reversal of 55743777774 is 47777734755.

55743777774 is a `hidden beast` number, since 557 + 4 + 3 + 7 + 7 + 7 + 7 + 74 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516146037 + ... + 516146144.

It is an arithmetic number, because the mean of its divisors is an integer number (7742191365).

Almost surely, 2^55743777774 is an apocalyptic number.

55743777774 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

55743777774 is an abundant number, since it is smaller than the sum of its proper divisors (68131284066).

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

55743777774 is a wasteful number, since it uses less digits than its factorization.

55743777774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032292192 (or 1032292186 counting only the distinct ones).

The product of its digits is 141178800, while the sum is 63.

The spelling of 55743777774 in words is "fifty-five billion, seven hundred forty-three million, seven hundred seventy-seven thousand, seven hundred seventy-four".