129757623130 has 16 divisors (see below), whose sum is σ = 233755661160. Its totient is φ = 51860396032.

The previous prime is 129757623109. The next prime is 129757623139. The reversal of 129757623130 is 31326757921.

It can be written as a sum of positive squares in 4 ways, for example, as 106182784449 + 23574838681 = 325857^2 + 153541^2 .

It is a super-2 number, since 2×129757623130² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (129757623139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5318875 + ... + 5343214.

Almost surely, 2^129757623130 is an apocalyptic number.

129757623130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129757623130 is a deficient number, since it is larger than the sum of its proper divisors (103998038030).

129757623130 is a wasteful number, since it uses less digits than its factorization.

129757623130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10663313.

The product of its (nonzero) digits is 476280, while the sum is 46.

The spelling of 129757623130 in words is "one hundred twenty-nine billion, seven hundred fifty-seven million, six hundred twenty-three thousand, one hundred thirty".