12530437846 has 4 divisors (see below), whose sum is σ = 18795656772. Its totient is φ = 6265218922.

The previous prime is 12530437837. The next prime is 12530437853. The reversal of 12530437846 is 64873403521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64873403521 = 19 ⋅3414389659.

It is a super-2 number, since 2×12530437846² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3132609460 + ... + 3132609463.

It is an arithmetic number, because the mean of its divisors is an integer number (4698914193).

Almost surely, 2^12530437846 is an apocalyptic number.

12530437846 is a deficient number, since it is larger than the sum of its proper divisors (6265218926).

12530437846 is an equidigital number, since it uses as much as digits as its factorization.

12530437846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6265218925.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 12530437846 in words is "twelve billion, five hundred thirty million, four hundred thirty-seven thousand, eight hundred forty-six".