263318960971 has 16 divisors (see below), whose sum is σ = 301167145728. Its totient is φ = 227887783200.

The previous prime is 263318960953. The next prime is 263318961079. The reversal of 263318960971 is 179069813362.

It is not a de Polignac number, because 263318960971 - 2²¹ = 263316863819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263318940971) 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, 2412936 + ... + 2519701.

It is an arithmetic number, because the mean of its divisors is an integer number (18822946608).

Almost surely, 2^263318960971 is an apocalyptic number.

263318960971 is a deficient number, since it is larger than the sum of its proper divisors (37848184757).

263318960971 is a wasteful number, since it uses less digits than its factorization.

263318960971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4932882.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 263318960971 in words is "two hundred sixty-three billion, three hundred eighteen million, nine hundred sixty thousand, nine hundred seventy-one".