12952978395 has 64 divisors (see below), whose sum is σ = 25462702080. Its totient is φ = 5490315648.

The previous prime is 12952978393. The next prime is 12952978417. The reversal of 12952978395 is 59387925921.

It is not a de Polignac number, because 12952978395 - 2¹ = 12952978393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12952978393) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24694 + ... + 162836.

It is an arithmetic number, because the mean of its divisors is an integer number (397854720).

Almost surely, 2^12952978395 is an apocalyptic number.

12952978395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12952978395 is a deficient number, since it is larger than the sum of its proper divisors (12509723685).

12952978395 is a wasteful number, since it uses less digits than its factorization.

12952978395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138224.

The product of its digits is 12247200, while the sum is 60.

The spelling of 12952978395 in words is "twelve billion, nine hundred fifty-two million, nine hundred seventy-eight thousand, three hundred ninety-five".