26394018632425 has 12 divisors (see below), whose sum is σ = 32898161261020. Its totient is φ = 21005809643520.

The previous prime is 26394018632411. The next prime is 26394018632459. The reversal of 26394018632425 is 52423681049362.

It can be written as a sum of positive squares in 6 ways, for example, as 2327723873344 + 24066294759081 = 1525688^2 + 4905741^2 .

It is not a de Polignac number, because 26394018632425 - 2⁴³ = 17597925610217 is a prime.

It is a super-2 number, since 2×26394018632425² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2735126640 + ... + 2735136289.

Almost surely, 2^{26394018632425} is an apocalyptic number.

26394018632425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26394018632425 is a deficient number, since it is larger than the sum of its proper divisors (6504142628595).

26394018632425 is a wasteful number, since it uses less digits than its factorization.

26394018632425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5470263132 (or 5470263127 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 55.

The spelling of 26394018632425 in words is "twenty-six trillion, three hundred ninety-four billion, eighteen million, six hundred thirty-two thousand, four hundred twenty-five".