26774173140 has 144 divisors (see below), whose sum is σ = 88558214976. Its totient is φ = 5991398400.

The previous prime is 26774173087. The next prime is 26774173141. The reversal of 26774173140 is 4137147762.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 26774173092 and 26774173101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26774173141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8481 + ... + 231560.

It is an arithmetic number, because the mean of its divisors is an integer number (614987604).

Almost surely, 2^26774173140 is an apocalyptic number.

26774173140 is a gapful number since it is divisible by the number (20) 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 26774173140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44279107488).

26774173140 is an abundant number, since it is smaller than the sum of its proper divisors (61784041836).

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

26774173140 is a wasteful number, since it uses less digits than its factorization.

26774173140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240090 (or 240075 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 42.

The spelling of 26774173140 in words is "twenty-six billion, seven hundred seventy-four million, one hundred seventy-three thousand, one hundred forty".