10263513481 has 9 divisors (see below), whose sum is σ = 11115171669. Its totient is φ = 9472796736.

The previous prime is 10263513473. The next prime is 10263513493. The reversal of 10263513481 is 18431536201.

The square root of 10263513481 is 101309.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 561263481 + 9702250000 = 23691^2 + 98500^2 .

It is not a de Polignac number, because 10263513481 - 2³ = 10263513473 is a prime.

It is a super-2 number, since 2×10263513481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10263513431) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1313121 + ... + 1320913.

Almost surely, 2^10263513481 is an apocalyptic number.

10263513481 is the 101309-th square number.

10263513481 is the 50655-th centered octagonal number.

It is an amenable number.

10263513481 is a deficient number, since it is larger than the sum of its proper divisors (851658188).

10263513481 is an frugal number, since it uses more digits than its factorization.

10263513481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15612 (or 7806 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 10263513481 in words is "ten billion, two hundred sixty-three million, five hundred thirteen thousand, four hundred eighty-one".