263493906494880 has 96 divisors (see below), whose sum is σ = 830237591328768. Its totient is φ = 70245419648000.

The previous prime is 263493906494851. The next prime is 263493906494933. The reversal of 263493906494880 is 88494609394362.

It is a tau number, because it is divible by the number of its divisors (96).

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, 74928096 + ... + 78365855.

It is an arithmetic number, because the mean of its divisors is an integer number (8648308243008).

Almost surely, 2^{263493906494880} is an apocalyptic number.

263493906494880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263493906494880 is an abundant number, since it is smaller than the sum of its proper divisors (566743684833888).

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

263493906494880 is a wasteful number, since it uses less digits than its factorization.

263493906494880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153297550 (or 153297542 counting only the distinct ones).

The product of its (nonzero) digits is 1934917632, while the sum is 75.

The spelling of 263493906494880 in words is "two hundred sixty-three trillion, four hundred ninety-three billion, nine hundred six million, four hundred ninety-four thousand, eight hundred eighty".