773900391744 has 140 divisors (see below), whose sum is σ = 2312148816384. Its totient is φ = 255935344896.

The previous prime is 773900391739. The next prime is 773900391779. The reversal of 773900391744 is 447193009377.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 70627 + ... + 1246109.

Almost surely, 2^773900391744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 773900391744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1156074408192).

773900391744 is an abundant number, since it is smaller than the sum of its proper divisors (1538248424640).

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

773900391744 is a wasteful number, since it uses less digits than its factorization.

773900391744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175634 (or 1175615 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 54.

The spelling of 773900391744 in words is "seven hundred seventy-three billion, nine hundred million, three hundred ninety-one thousand, seven hundred forty-four".