775135992 has 64 divisors (see below), whose sum is σ = 1972108800. Its totient is φ = 253843200.

The previous prime is 775135987. The next prime is 775135993. The reversal of 775135992 is 299531577.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775135993) 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, 429492 + ... + 431292.

It is an arithmetic number, because the mean of its divisors is an integer number (30814200).

Almost surely, 2^775135992 is an apocalyptic number.

It is an amenable number.

775135992 is an abundant number, since it is smaller than the sum of its proper divisors (1196972808).

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

775135992 is a wasteful number, since it uses less digits than its factorization.

775135992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116 (or 2112 counting only the distinct ones).

The product of its digits is 595350, while the sum is 48.

The square root of 775135992 is about 27841.2641954348. The cubic root of 775135992 is about 918.5989986645.

The spelling of 775135992 in words is "seven hundred seventy-five million, one hundred thirty-five thousand, nine hundred ninety-two".