26947450530 has 864 divisors, whose sum is σ = 101930063040. Its totient is φ = 4868398080.

The previous prime is 26947450477. The next prime is 26947450583. The reversal of 26947450530 is 3505474962.

26947450530 is a `hidden beast` number, since 2 + 69 + 4 + 7 + 4 + 50 + 530 = 666.

It is an interprime number because it is at equal distance from previous prime (26947450477) and next prime (26947450583).

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 155765524 + ... + 155765696.

It is an arithmetic number, because the mean of its divisors is an integer number (117974610).

Almost surely, 2^26947450530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26947450530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50965031520).

26947450530 is an abundant number, since it is smaller than the sum of its proper divisors (74982612510).

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

26947450530 is a wasteful number, since it uses less digits than its factorization.

26947450530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 26947450530 in words is "twenty-six billion, nine hundred forty-seven million, four hundred fifty thousand, five hundred thirty".