775400850 has 192 divisors, whose sum is σ = 2474484480. Its totient is φ = 177059520.

The previous prime is 775400819. The next prime is 775400851. The reversal of 775400850 is 58004577.

It is not an unprimeable number, because it can be changed into a prime (775400851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 764944 + ... + 765956.

It is an arithmetic number, because the mean of its divisors is an integer number (12887940).

Almost surely, 2^775400850 is an apocalyptic number.

775400850 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 775400850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1237242240).

775400850 is an abundant number, since it is smaller than the sum of its proper divisors (1699083630).

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

775400850 is a wasteful number, since it uses less digits than its factorization.

775400850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053 (or 1030 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 775400850 is about 27846.0203619835. The cubic root of 775400850 is about 918.7036128183.

The spelling of 775400850 in words is "seven hundred seventy-five million, four hundred thousand, eight hundred fifty".