26136428820 has 48 divisors (see below), whose sum is σ = 73198859328. Its totient is φ = 6968108800.

The previous prime is 26136428767. The next prime is 26136428849. The reversal of 26136428820 is 2882463162.

It is a super-2 number, since 2×26136428820² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224920 + ... + 320720.

It is an arithmetic number, because the mean of its divisors is an integer number (1524976236).

Almost surely, 2^26136428820 is an apocalyptic number.

26136428820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26136428820 is an abundant number, since it is smaller than the sum of its proper divisors (47062430508).

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

26136428820 is a wasteful number, since it uses less digits than its factorization.

26136428820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100360 (or 100358 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 26136428820 in words is "twenty-six billion, one hundred thirty-six million, four hundred twenty-eight thousand, eight hundred twenty".