125765762805 has 16 divisors (see below), whose sum is σ = 223583578560. Its totient is φ = 67075073424.

The previous prime is 125765762797. The next prime is 125765762807. The reversal of 125765762805 is 508267567521.

125765762805 is a `hidden beast` number, since 1 + 2 + 5 + 7 + 6 + 5 + 7 + 628 + 0 + 5 = 666.

It is not a de Polignac number, because 125765762805 - 2³ = 125765762797 is a prime.

It is a super-3 number, since 3×125765762805³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125765762807) 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, 465798987 + ... + 465799256.

It is an arithmetic number, because the mean of its divisors is an integer number (13973973660).

Almost surely, 2^125765762805 is an apocalyptic number.

125765762805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125765762805 is a deficient number, since it is larger than the sum of its proper divisors (97817815755).

125765762805 is an equidigital number, since it uses as much as digits as its factorization.

125765762805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931598257 (or 931598251 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 54.

The spelling of 125765762805 in words is "one hundred twenty-five billion, seven hundred sixty-five million, seven hundred sixty-two thousand, eight hundred five".