12451021742152 has 64 divisors (see below), whose sum is σ = 28851285957120. Its totient is φ = 4915404238848.

The previous prime is 12451021742141. The next prime is 12451021742167. The reversal of 12451021742152 is 25124712015421.

It is a super-2 number, since 2×12451021742152² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139091473 + ... + 139180960.

It is an arithmetic number, because the mean of its divisors is an integer number (450801343080).

Almost surely, 2^{12451021742152} is an apocalyptic number.

It is an amenable number.

12451021742152 is an abundant number, since it is smaller than the sum of its proper divisors (16400264214968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12451021742152 is a wasteful number, since it uses less digits than its factorization.

12451021742152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278272510 (or 278272506 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

Adding to 12451021742152 its reverse (25124712015421), we get a palindrome (37575733757573).

The spelling of 12451021742152 in words is "twelve trillion, four hundred fifty-one billion, twenty-one million, seven hundred forty-two thousand, one hundred fifty-two".