786375390746660 has 144 divisors (see below), whose sum is σ = 1954840131548976. Its totient is φ = 263951436672000.

The previous prime is 786375390746653. The next prime is 786375390746683. The reversal of 786375390746660 is 66647093573687.

It can be written as a sum of positive squares in 8 ways, for example, as 519138361713664 + 267237029032996 = 22784608^2 + 16347386^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1319165870 + ... + 1319761850.

Almost surely, 2^{786375390746660} 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 786375390746660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (977420065774488).

786375390746660 is an abundant number, since it is smaller than the sum of its proper divisors (1168464740802316).

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

786375390746660 is a wasteful number, since it uses less digits than its factorization.

786375390746660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637966 (or 637953 counting only the distinct ones).

The product of its (nonzero) digits is 5761082880, while the sum is 77.

The spelling of 786375390746660 in words is "seven hundred eighty-six trillion, three hundred seventy-five billion, three hundred ninety million, seven hundred forty-six thousand, six hundred sixty".