775326623427 has 6 divisors (see below), whose sum is σ = 1119916233852. Its totient is φ = 516884415612.

The previous prime is 775326623411. The next prime is 775326623473. The reversal of 775326623427 is 724326623577.

775326623427 is a `hidden beast` number, since 7 + 7 + 5 + 3 + 2 + 6 + 623 + 4 + 2 + 7 = 666.

It is not a de Polignac number, because 775326623427 - 2⁴ = 775326623411 is a prime.

It is a super-2 number, since 2×775326623427² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (775326621427) 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 5 ways as a sum of consecutive naturals, for example, 43073701293 + ... + 43073701310.

It is an arithmetic number, because the mean of its divisors is an integer number (186652705642).

Almost surely, 2^775326623427 is an apocalyptic number.

775326623427 is a deficient number, since it is larger than the sum of its proper divisors (344589610425).

775326623427 is a wasteful number, since it uses less digits than its factorization.

775326623427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86147402609 (or 86147402606 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 54.

The spelling of 775326623427 in words is "seven hundred seventy-five billion, three hundred twenty-six million, six hundred twenty-three thousand, four hundred twenty-seven".