263450291916 has 48 divisors (see below), whose sum is σ = 719669099520. Its totient is φ = 73435620480.

The previous prime is 263450291911. The next prime is 263450291917. The reversal of 263450291916 is 619192054362.

It is a super-2 number, since 2×263450291916² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (263450291911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38244276 + ... + 38251163.

It is an arithmetic number, because the mean of its divisors is an integer number (14993106240).

Almost surely, 2^263450291916 is an apocalyptic number.

It is an amenable number.

263450291916 is an abundant number, since it is smaller than the sum of its proper divisors (456218807604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

263450291916 is a wasteful number, since it uses less digits than its factorization.

263450291916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76495494 (or 76495492 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 263450291916 in words is "two hundred sixty-three billion, four hundred fifty million, two hundred ninety-one thousand, nine hundred sixteen".