12139927623 has 16 divisors (see below), whose sum is σ = 17987746560. Its totient is φ = 8092084248.

The previous prime is 12139927567. The next prime is 12139927633. The reversal of 12139927623 is 32672993121.

12139927623 is a `hidden beast` number, since 1 + 2 + 13 + 9 + 9 + 2 + 7 + 623 = 666.

It is not a de Polignac number, because 12139927623 - 2¹³ = 12139919431 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12139927633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175836 + ... + 234942.

It is an arithmetic number, because the mean of its divisors is an integer number (1124234160).

Almost surely, 2^12139927623 is an apocalyptic number.

12139927623 is a deficient number, since it is larger than the sum of its proper divisors (5847818937).

12139927623 is an equidigital number, since it uses as much as digits as its factorization.

12139927623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66723 (or 66717 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The spelling of 12139927623 in words is "twelve billion, one hundred thirty-nine million, nine hundred twenty-seven thousand, six hundred twenty-three".