12981029451 has 8 divisors (see below), whose sum is σ = 18639426960. Its totient is φ = 7988325792.

The previous prime is 12981029449. The next prime is 12981029461. The reversal of 12981029451 is 15492018921.

12981029451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12981029451 - 2¹ = 12981029449 is a prime.

It is a super-2 number, since 2×12981029451² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12981029441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166423416 + ... + 166423493.

It is an arithmetic number, because the mean of its divisors is an integer number (2329928370).

Almost surely, 2^12981029451 is an apocalyptic number.

12981029451 is a deficient number, since it is larger than the sum of its proper divisors (5658397509).

12981029451 is a wasteful number, since it uses less digits than its factorization.

12981029451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332846925.

The product of its (nonzero) digits is 51840, while the sum is 42.

The spelling of 12981029451 in words is "twelve billion, nine hundred eighty-one million, twenty-nine thousand, four hundred fifty-one".