12500462500 has 36 divisors (see below), whose sum is σ = 27343038996. Its totient is φ = 5000180000.

The previous prime is 12500462479. The next prime is 12500462503. The reversal of 12500462500 is 526400521.

It can be written as a sum of positive squares in 6 ways, for example, as 7448380416 + 5052082084 = 86304^2 + 71078^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

12500462500 is a modest number, since divided by 462500 gives 12500 as remainder.

It is not an unprimeable number, because it can be changed into a prime (12500462503) 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, 487519 + ... + 512518.

It is an arithmetic number, because the mean of its divisors is an integer number (759528861).

Almost surely, 2^12500462500 is an apocalyptic number.

12500462500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12500462500 is an abundant number, since it is smaller than the sum of its proper divisors (14842576496).

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

12500462500 is an equidigital number, since it uses as much as digits as its factorization.

12500462500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000066 (or 1000044 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 12500462500 in words is "twelve billion, five hundred million, four hundred sixty-two thousand, five hundred".