263474370431 has 16 divisors (see below), whose sum is σ = 268906841280. Its totient is φ = 258102236160.

The previous prime is 263474370343. The next prime is 263474370457. The reversal of 263474370431 is 134073474362.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263474370431 is a prime.

It is a super-2 number, since 2×263474370431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263474370331) 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, 10782830 + ... + 10807236.

It is an arithmetic number, because the mean of its divisors is an integer number (16806677580).

Almost surely, 2^263474370431 is an apocalyptic number.

263474370431 is a deficient number, since it is larger than the sum of its proper divisors (5432470849).

263474370431 is a wasteful number, since it uses less digits than its factorization.

263474370431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25634.

The product of its (nonzero) digits is 1016064, while the sum is 44.

The spelling of 263474370431 in words is "two hundred sixty-three billion, four hundred seventy-four million, three hundred seventy thousand, four hundred thirty-one".