1026451415251 has 4 divisors (see below), whose sum is σ = 1026454226512. Its totient is φ = 1026448603992.

The previous prime is 1026451415219. The next prime is 1026451415257. The reversal of 1026451415251 is 1525141546201.

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 1026451415251 - 2⁵ = 1026451415219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1026451415251.

It is not an unprimeable number, because it can be changed into a prime (1026451415257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758700 + ... + 1621273.

It is an arithmetic number, because the mean of its divisors is an integer number (256613556628).

Almost surely, 2^{1026451415251} is an apocalyptic number.

1026451415251 is a deficient number, since it is larger than the sum of its proper divisors (2811261).

1026451415251 is an equidigital number, since it uses as much as digits as its factorization.

1026451415251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811260.

The product of its (nonzero) digits is 48000, while the sum is 37.

The spelling of 1026451415251 in words is "one trillion, twenty-six billion, four hundred fifty-one million, four hundred fifteen thousand, two hundred fifty-one".