26179874420 has 48 divisors (see below), whose sum is σ = 63113530368. Its totient is φ = 8935695360.

The previous prime is 26179874411. The next prime is 26179874423. The reversal of 26179874420 is 2447897162.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26179874423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388061 + ... + 450500.

It is an arithmetic number, because the mean of its divisors is an integer number (1314865216).

Almost surely, 2^26179874420 is an apocalyptic number.

26179874420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26179874420 is an abundant number, since it is smaller than the sum of its proper divisors (36933655948).

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

26179874420 is a wasteful number, since it uses less digits than its factorization.

26179874420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838800 (or 838798 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 26179874420 in words is "twenty-six billion, one hundred seventy-nine million, eight hundred seventy-four thousand, four hundred twenty".