12500723215 has 16 divisors (see below), whose sum is σ = 15656741568. Its totient is φ = 9563533056.

The previous prime is 12500723161. The next prime is 12500723251. The reversal of 12500723215 is 51232700521.

It is a cyclic number.

It is not a de Polignac number, because 12500723215 - 2⁷ = 12500723087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615259 + ... + 635251.

It is an arithmetic number, because the mean of its divisors is an integer number (978546348).

Almost surely, 2^12500723215 is an apocalyptic number.

12500723215 is a deficient number, since it is larger than the sum of its proper divisors (3156018353).

12500723215 is a wasteful number, since it uses less digits than its factorization.

12500723215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25458.

The product of its (nonzero) digits is 4200, while the sum is 28.

The spelling of 12500723215 in words is "twelve billion, five hundred million, seven hundred twenty-three thousand, two hundred fifteen".