26287361025 has 24 divisors (see below), whose sum is σ = 44960455680. Its totient is φ = 13536479040.

The previous prime is 26287361017. The next prime is 26287361033. The reversal of 26287361025 is 52016378262.

It is an interprime number because it is at equal distance from previous prime (26287361017) and next prime (26287361033).

It is not a de Polignac number, because 26287361025 - 2³ = 26287361017 is a prime.

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, 6040897 + ... + 6045246.

It is an arithmetic number, because the mean of its divisors is an integer number (1873352320).

Almost surely, 2^26287361025 is an apocalyptic number.

26287361025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26287361025 is a deficient number, since it is larger than the sum of its proper divisors (18673094655).

26287361025 is a wasteful number, since it uses less digits than its factorization.

26287361025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12086185 (or 12086180 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 26287361025 in words is "twenty-six billion, two hundred eighty-seven million, three hundred sixty-one thousand, twenty-five".