1026263521451 has 6 divisors (see below), whose sum is σ = 1193816749500. Its totient is φ = 879654446916.

The previous prime is 1026263521441. The next prime is 1026263521471. The reversal of 1026263521451 is 1541253626201.

It is a de Polignac number, because none of the positive numbers 2^k-1026263521451 is a prime.

It is a super-2 number, since 2×1026263521451² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1026263521441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10472076701 + ... + 10472076798.

It is an arithmetic number, because the mean of its divisors is an integer number (198969458250).

Almost surely, 2^{1026263521451} is an apocalyptic number.

1026263521451 is a deficient number, since it is larger than the sum of its proper divisors (167553228049).

1026263521451 is an equidigital number, since it uses as much as digits as its factorization.

1026263521451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20944153513 (or 20944153506 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 1026263521451 in words is "one trillion, twenty-six billion, two hundred sixty-three million, five hundred twenty-one thousand, four hundred fifty-one".