26512542012 has 96 divisors (see below), whose sum is σ = 71407768320. Its totient is φ = 7571681280.

The previous prime is 26512541999. The next prime is 26512542013. The reversal of 26512542012 is 21024521562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26512542013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456658 + ... + 511430.

It is an arithmetic number, because the mean of its divisors is an integer number (743830920).

Almost surely, 2^26512542012 is an apocalyptic number.

26512542012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26512542012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35703884160).

26512542012 is an abundant number, since it is smaller than the sum of its proper divisors (44895226308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26512542012 is a wasteful number, since it uses less digits than its factorization.

26512542012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55003 (or 55001 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 26512542012 in words is "twenty-six billion, five hundred twelve million, five hundred forty-two thousand, twelve".