1351705426266 has 128 divisors (see below), whose sum is σ = 3222343918080. Its totient is φ = 373761957888.

The previous prime is 1351705426261. The next prime is 1351705426273. The reversal of 1351705426266 is 6626245071531.

It is not an unprimeable number, because it can be changed into a prime (1351705426261) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17314416 + ... + 17392308.

It is an arithmetic number, because the mean of its divisors is an integer number (25174561860).

Almost surely, 2^{1351705426266} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1351705426266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1611171959040).

1351705426266 is an abundant number, since it is smaller than the sum of its proper divisors (1870638491814).

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

1351705426266 is a wasteful number, since it uses less digits than its factorization.

1351705426266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78520.

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 1351705426266 in words is "one trillion, three hundred fifty-one billion, seven hundred five million, four hundred twenty-six thousand, two hundred sixty-six".