774768004542 has 96 divisors (see below), whose sum is σ = 1959240104640. Its totient is φ = 216707673600.

The previous prime is 774768004537. The next prime is 774768004547. The reversal of 774768004542 is 245400867477.

774768004542 is a `hidden beast` number, since 77 + 47 + 6 + 80 + 0 + 454 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (774768004537) and next prime (774768004547).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774768004547) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 790588 + ... + 1474640.

It is an arithmetic number, because the mean of its divisors is an integer number (20408751090).

Almost surely, 2^774768004542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 774768004542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (979620052320).

774768004542 is an abundant number, since it is smaller than the sum of its proper divisors (1184472100098).

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

774768004542 is a wasteful number, since it uses less digits than its factorization.

774768004542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684258 (or 684255 counting only the distinct ones).

The product of its (nonzero) digits is 10536960, while the sum is 54.

The spelling of 774768004542 in words is "seven hundred seventy-four billion, seven hundred sixty-eight million, four thousand, five hundred forty-two".