774142354544 has 40 divisors (see below), whose sum is σ = 1617231334320. Its totient is φ = 356864352768.

The previous prime is 774142354519. The next prime is 774142354547. The reversal of 774142354544 is 445453241477.

It is a junction number, because it is equal to n+sod(n) for n = 774142354492 and 774142354501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774142354547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2078189 + ... + 2422220.

It is an arithmetic number, because the mean of its divisors is an integer number (40430783358).

Almost surely, 2^774142354544 is an apocalyptic number.

It is an amenable number.

774142354544 is an abundant number, since it is smaller than the sum of its proper divisors (843088979776).

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

774142354544 is a wasteful number, since it uses less digits than its factorization.

774142354544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4501257 (or 4501251 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 50.

The spelling of 774142354544 in words is "seven hundred seventy-four billion, one hundred forty-two million, three hundred fifty-four thousand, five hundred forty-four".