771936630225 has 12 divisors (see below), whose sum is σ = 1276268562096. Its totient is φ = 411699536080.

The previous prime is 771936630149. The next prime is 771936630229. The reversal of 771936630225 is 522036639177.

771936630225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 771936630225 - 2¹⁰ = 771936629201 is a prime.

It is a super-2 number, since 2×771936630225² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (771936630229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5146244127 + ... + 5146244276.

It is an arithmetic number, because the mean of its divisors is an integer number (106355713508).

Almost surely, 2^771936630225 is an apocalyptic number.

771936630225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

771936630225 is a deficient number, since it is larger than the sum of its proper divisors (504331931871).

771936630225 is a wasteful number, since it uses less digits than its factorization.

771936630225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10292488416 (or 10292488411 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 51.

The spelling of 771936630225 in words is "seven hundred seventy-one billion, nine hundred thirty-six million, six hundred thirty thousand, two hundred twenty-five".