27260525670 has 128 divisors (see below), whose sum is σ = 77276021760. Its totient is φ = 6024990720.

The previous prime is 27260525653. The next prime is 27260525687. The reversal of 27260525670 is 7652506272.

It is an interprime number because it is at equal distance from previous prime (27260525653) and next prime (27260525687).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 958921 + ... + 986939.

It is an arithmetic number, because the mean of its divisors is an integer number (603718920).

Almost surely, 2^27260525670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27260525670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38638010880).

27260525670 is an abundant number, since it is smaller than the sum of its proper divisors (50015496090).

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

27260525670 is a wasteful number, since it uses less digits than its factorization.

27260525670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28190.

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 27260525670 in words is "twenty-seven billion, two hundred sixty million, five hundred twenty-five thousand, six hundred seventy".