63423151265 has 16 divisors (see below), whose sum is σ = 76409005008. Its totient is φ = 50537834496.

The previous prime is 63423151247. The next prime is 63423151271. The reversal of 63423151265 is 56215132436.

It can be written as a sum of positive squares in 8 ways, for example, as 29102995216 + 34320156049 = 170596^2 + 185257^2 .

It is a cyclic number.

It is not a de Polignac number, because 63423151265 - 2⁶ = 63423151201 is a prime.

It is a super-2 number, since 2×63423151265² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5247269 + ... + 5259341.

It is an arithmetic number, because the mean of its divisors is an integer number (4775562813).

Almost surely, 2^63423151265 is an apocalyptic number.

It is an amenable number.

63423151265 is a deficient number, since it is larger than the sum of its proper divisors (12985853743).

63423151265 is a wasteful number, since it uses less digits than its factorization.

63423151265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16148.

The product of its digits is 129600, while the sum is 38.

The spelling of 63423151265 in words is "sixty-three billion, four hundred twenty-three million, one hundred fifty-one thousand, two hundred sixty-five".