779377940736 has 144 divisors (see below), whose sum is σ = 2089829750400. Its totient is φ = 257851883520.

The previous prime is 779377940713. The next prime is 779377940741. The reversal of 779377940736 is 637049773977.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64336216 + ... + 64348328.

It is an arithmetic number, because the mean of its divisors is an integer number (14512706600).

Almost surely, 2^779377940736 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 779377940736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1044914875200).

779377940736 is an abundant number, since it is smaller than the sum of its proper divisors (1310451809664).

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

779377940736 is a wasteful number, since it uses less digits than its factorization.

779377940736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12752 (or 12738 counting only the distinct ones).

The product of its (nonzero) digits is 294055272, while the sum is 69.

The spelling of 779377940736 in words is "seven hundred seventy-nine billion, three hundred seventy-seven million, nine hundred forty thousand, seven hundred thirty-six".