125829834920 has 16 divisors (see below), whose sum is σ = 283117128660. Its totient is φ = 50331933952.

The previous prime is 125829834887. The next prime is 125829834941. The reversal of 125829834920 is 29438928521.

It can be written as a sum of positive squares in 2 ways, for example, as 101657670244 + 24172164676 = 318838^2 + 155474^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1572872897 + ... + 1572872976.

Almost surely, 2^125829834920 is an apocalyptic number.

125829834920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125829834920 is an abundant number, since it is smaller than the sum of its proper divisors (157287293740).

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

125829834920 is a wasteful number, since it uses less digits than its factorization.

125829834920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145745884 (or 3145745880 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 53.

The spelling of 125829834920 in words is "one hundred twenty-five billion, eight hundred twenty-nine million, eight hundred thirty-four thousand, nine hundred twenty".