263465423061535 has 16 divisors (see below), whose sum is σ = 332847960883200. Its totient is φ = 199649338426656.

The previous prime is 263465423061521. The next prime is 263465423061619. The reversal of 263465423061535 is 535160324564362.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263465423061535 is a prime.

It is a super-2 number, since 2×263465423061535² (a number of 30 digits) contains 22 as substring.

It is a congruent 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, 205740639 + ... + 207017248.

It is an arithmetic number, because the mean of its divisors is an integer number (20802997555200).

Almost surely, 2^{263465423061535} is an apocalyptic number.

263465423061535 is a deficient number, since it is larger than the sum of its proper divisors (69382537821665).

263465423061535 is a wasteful number, since it uses less digits than its factorization.

263465423061535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412764630.

The product of its (nonzero) digits is 46656000, while the sum is 55.

The spelling of 263465423061535 in words is "two hundred sixty-three trillion, four hundred sixty-five billion, four hundred twenty-three million, sixty-one thousand, five hundred thirty-five".