12965021390 has 8 divisors (see below), whose sum is σ = 23337038520. Its totient is φ = 5186008552.

The previous prime is 12965021359. The next prime is 12965021411. The reversal of 12965021390 is 9312056921.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 648251060 + ... + 648251079.

It is an arithmetic number, because the mean of its divisors is an integer number (2917129815).

Almost surely, 2^12965021390 is an apocalyptic number.

12965021390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12965021390 is a deficient number, since it is larger than the sum of its proper divisors (10372017130).

12965021390 is a wasteful number, since it uses less digits than its factorization.

12965021390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296502146.

The product of its (nonzero) digits is 29160, while the sum is 38.

The spelling of 12965021390 in words is "twelve billion, nine hundred sixty-five million, twenty-one thousand, three hundred ninety".