1263088325261 has 16 divisors (see below), whose sum is σ = 1514706739200. Its totient is φ = 1029790159728.

The previous prime is 1263088325221. The next prime is 1263088325293. The reversal of 1263088325261 is 1625238803621.

It is a cyclic number.

It is not a de Polignac number, because 1263088325261 - 2¹⁰ = 1263088324237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263088325221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21885341 + ... + 21942978.

It is an arithmetic number, because the mean of its divisors is an integer number (94669171200).

Almost surely, 2^{1263088325261} is an apocalyptic number.

It is an amenable number.

1263088325261 is a deficient number, since it is larger than the sum of its proper divisors (251618413939).

1263088325261 is a wasteful number, since it uses less digits than its factorization.

1263088325261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43828528.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 1263088325261 in words is "one trillion, two hundred sixty-three billion, eighty-eight million, three hundred twenty-five thousand, two hundred sixty-one".