26274398220 has 192 divisors, whose sum is σ = 97482147840. Its totient is φ = 5744445696.

The previous prime is 26274398209. The next prime is 26274398233. The reversal of 26274398220 is 2289347262.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 64167 + ... + 238046.

It is an arithmetic number, because the mean of its divisors is an integer number (507719520).

Almost surely, 2^26274398220 is an apocalyptic number.

26274398220 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 26274398220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48741073920).

26274398220 is an abundant number, since it is smaller than the sum of its proper divisors (71207749620).

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

26274398220 is a wasteful number, since it uses less digits than its factorization.

26274398220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302261 (or 302253 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 26274398220 in words is "twenty-six billion, two hundred seventy-four million, three hundred ninety-eight thousand, two hundred twenty".