786778274748 has 48 divisors (see below), whose sum is σ = 1917492788736. Its totient is φ = 250613436480.

The previous prime is 786778274747. The next prime is 786778274749. The reversal of 786778274748 is 847472877687.

It is an interprime number because it is at equal distance from previous prime (786778274747) and next prime (786778274749).

It is a self number, because there is not a number n which added to its sum of digits gives 786778274748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (786778274743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1097911 + ... + 1667022.

It is an arithmetic number, because the mean of its divisors is an integer number (39947766432).

Almost surely, 2^786778274748 is an apocalyptic number.

It is an amenable number.

786778274748 is an abundant number, since it is smaller than the sum of its proper divisors (1130714513988).

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

786778274748 is a wasteful number, since it uses less digits than its factorization.

786778274748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765994 (or 2765992 counting only the distinct ones).

The product of its digits is 1652195328, while the sum is 75.

The spelling of 786778274748 in words is "seven hundred eighty-six billion, seven hundred seventy-eight million, two hundred seventy-four thousand, seven hundred forty-eight".