26063986851 has 72 divisors (see below), whose sum is σ = 44631615600. Its totient is φ = 14610153600.

The previous prime is 26063986813. The next prime is 26063986889. The reversal of 26063986851 is 15868936062.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26063986813) and next prime (26063986889).

It is not a de Polignac number, because 26063986851 - 2¹³ = 26063978659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26063986811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 18238605 + ... + 18240033.

It is an arithmetic number, because the mean of its divisors is an integer number (619883550).

Almost surely, 2^26063986851 is an apocalyptic number.

26063986851 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

26063986851 is a deficient number, since it is larger than the sum of its proper divisors (18567628749).

26063986851 is a wasteful number, since it uses less digits than its factorization.

26063986851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209 (or 2199 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 26063986851 in words is "twenty-six billion, sixty-three million, nine hundred eighty-six thousand, eight hundred fifty-one".