263515865041 has 16 divisors (see below), whose sum is σ = 309713882688. Its totient is φ = 221040187200.

The previous prime is 263515865021. The next prime is 263515865077. The reversal of 263515865041 is 140568515362.

It is a cyclic number.

It is not a de Polignac number, because 263515865041 - 2²⁷ = 263381647313 is a prime.

It is a super-2 number, since 2×263515865041² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263515864982 and 263515865000.

It is not an unprimeable number, because it can be changed into a prime (263515865021) 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, 37386 + ... + 726931.

It is an arithmetic number, because the mean of its divisors is an integer number (19357117668).

Almost surely, 2^263515865041 is an apocalyptic number.

It is an amenable number.

263515865041 is a deficient number, since it is larger than the sum of its proper divisors (46198017647).

263515865041 is a wasteful number, since it uses less digits than its factorization.

263515865041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766752.

The product of its (nonzero) digits is 864000, while the sum is 46.

The spelling of 263515865041 in words is "two hundred sixty-three billion, five hundred fifteen million, eight hundred sixty-five thousand, forty-one".