774120162816 has 1920 divisors, whose sum is σ = 3227303439360. Its totient is φ = 173425950720.

The previous prime is 774120162799. The next prime is 774120162847. The reversal of 774120162816 is 618261021477.

774120162816 is a `hidden beast` number, since 7 + 7 + 4 + 1 + 2 + 0 + 1 + 628 + 16 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 10604385756 + ... + 10604385828.

It is an arithmetic number, because the mean of its divisors is an integer number (1680887208).

Almost surely, 2^774120162816 is an apocalyptic number.

774120162816 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 774120162816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1613651719680).

774120162816 is an abundant number, since it is smaller than the sum of its proper divisors (2453183276544).

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

774120162816 is a wasteful number, since it uses less digits than its factorization.

774120162816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 774120162816 in words is "seven hundred seventy-four billion, one hundred twenty million, one hundred sixty-two thousand, eight hundred sixteen".