12936978370 has 16 divisors (see below), whose sum is σ = 23294537280. Its totient is φ = 5173018864.

The previous prime is 12936978349. The next prime is 12936978391. The reversal of 12936978370 is 7387963921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12936978349) and next prime (12936978391).

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, 190702 + ... + 249481.

It is an arithmetic number, because the mean of its divisors is an integer number (1455908580).

Almost surely, 2^12936978370 is an apocalyptic number.

12936978370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12936978370 is a deficient number, since it is larger than the sum of its proper divisors (10357558910).

12936978370 is a wasteful number, since it uses less digits than its factorization.

12936978370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443129.

The product of its (nonzero) digits is 3429216, while the sum is 55.

The spelling of 12936978370 in words is "twelve billion, nine hundred thirty-six million, nine hundred seventy-eight thousand, three hundred seventy".