262991871425 has 12 divisors (see below), whose sum is σ = 326447189376. Its totient is φ = 210175904400.

The previous prime is 262991871413. The next prime is 262991871491. The reversal of 262991871425 is 524178199262.

It is not a de Polignac number, because 262991871425 - 2¹⁸ = 262991609281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5415161 + ... + 5463510.

It is an arithmetic number, because the mean of its divisors is an integer number (27203932448).

Almost surely, 2^262991871425 is an apocalyptic number.

262991871425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

262991871425 is a deficient number, since it is larger than the sum of its proper divisors (63455317951).

262991871425 is a wasteful number, since it uses less digits than its factorization.

262991871425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10879648 (or 10879643 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 56.

The spelling of 262991871425 in words is "two hundred sixty-two billion, nine hundred ninety-one million, eight hundred seventy-one thousand, four hundred twenty-five".