263474789425 has 24 divisors (see below), whose sum is σ = 347175888696. Its totient is φ = 197664752640.

The previous prime is 263474789419. The next prime is 263474789441. The reversal of 263474789425 is 524987474362.

It can be written as a sum of positive squares in 12 ways, for example, as 132344619264 + 131130170161 = 363792^2 + 362119^2 .

It is not a de Polignac number, because 263474789425 - 2⁵ = 263474789393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1001302 + ... + 1236751.

It is an arithmetic number, because the mean of its divisors is an integer number (14465662029).

Almost surely, 2^263474789425 is an apocalyptic number.

263474789425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

263474789425 is a deficient number, since it is larger than the sum of its proper divisors (83701099271).

263474789425 is a wasteful number, since it uses less digits than its factorization.

263474789425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238357 (or 2238352 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 61.

The spelling of 263474789425 in words is "two hundred sixty-three billion, four hundred seventy-four million, seven hundred eighty-nine thousand, four hundred twenty-five".