775757838040 has 16 divisors (see below), whose sum is σ = 1745455135680. Its totient is φ = 310303135200.

The previous prime is 775757838013. The next prime is 775757838041. The reversal of 775757838040 is 40838757577.

It is a self number, because there is not a number n which added to its sum of digits gives 775757838040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775757838041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9696972936 + ... + 9696973015.

It is an arithmetic number, because the mean of its divisors is an integer number (109090945980).

Almost surely, 2^775757838040 is an apocalyptic number.

It is an amenable number.

775757838040 is an abundant number, since it is smaller than the sum of its proper divisors (969697297640).

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

775757838040 is a wasteful number, since it uses less digits than its factorization.

775757838040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19393945962 (or 19393945958 counting only the distinct ones).

The product of its (nonzero) digits is 46099200, while the sum is 61.

The spelling of 775757838040 in words is "seven hundred seventy-five billion, seven hundred fifty-seven million, eight hundred thirty-eight thousand, forty".