774198163690 has 16 divisors (see below), whose sum is σ = 1592636222592. Its totient is φ = 265439370384.

The previous prime is 774198163637. The next prime is 774198163727. The reversal of 774198163690 is 96361891477.

774198163690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×774198163690² (a number of 25 digits) contains 22 as substring.

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, 5529986814 + ... + 5529986953.

It is an arithmetic number, because the mean of its divisors is an integer number (99539763912).

Almost surely, 2^774198163690 is an apocalyptic number.

774198163690 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

774198163690 is an abundant number, since it is smaller than the sum of its proper divisors (818438058902).

774198163690 is a wasteful number, since it uses less digits than its factorization.

774198163690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11059973781.

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 774198163690 in words is "seven hundred seventy-four billion, one hundred ninety-eight million, one hundred sixty-three thousand, six hundred ninety".