9912910251451 has 4 divisors (see below), whose sum is σ = 9938792524032. Its totient is φ = 9887027978872.

The previous prime is 9912910251389. The next prime is 9912910251463. The reversal of 9912910251451 is 1541520192199.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9912910251451 - 2¹⁹ = 9912909727163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9912910251395 and 9912910251404.

It is not an unprimeable number, because it can be changed into a prime (9912910551451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12941135716 + ... + 12941136481.

It is an arithmetic number, because the mean of its divisors is an integer number (2484698131008).

Almost surely, 2^{9912910251451} is an apocalyptic number.

9912910251451 is a deficient number, since it is larger than the sum of its proper divisors (25882272581).

9912910251451 is a wasteful number, since it uses less digits than its factorization.

9912910251451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25882272580.

The product of its (nonzero) digits is 291600, while the sum is 49.

The spelling of 9912910251451 in words is "nine trillion, nine hundred twelve billion, nine hundred ten million, two hundred fifty-one thousand, four hundred fifty-one".