12279623390 has 16 divisors (see below), whose sum is σ = 22477955760. Its totient is φ = 4828597440.

The previous prime is 12279623383. The next prime is 12279623417. The reversal of 12279623390 is 9332697221.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10405871 + ... + 10407050.

It is an arithmetic number, because the mean of its divisors is an integer number (1404872235).

Almost surely, 2^12279623390 is an apocalyptic number.

12279623390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12279623390 is a deficient number, since it is larger than the sum of its proper divisors (10198332370).

12279623390 is a wasteful number, since it uses less digits than its factorization.

12279623390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20812987.

The product of its (nonzero) digits is 244944, while the sum is 44.

The spelling of 12279623390 in words is "twelve billion, two hundred seventy-nine million, six hundred twenty-three thousand, three hundred ninety".