27878841030 has 64 divisors (see below), whose sum is σ = 69219541440. Its totient is φ = 7180591104.

The previous prime is 27878841013. The next prime is 27878841031. The reversal of 27878841030 is 3014887872.

It is a happy number.

It is a super-2 number, since 2×27878841030² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27878841031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60406 + ... + 243734.

It is an arithmetic number, because the mean of its divisors is an integer number (1081555335).

Almost surely, 2^27878841030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27878841030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34609770720).

27878841030 is an abundant number, since it is smaller than the sum of its proper divisors (41340700410).

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

27878841030 is a wasteful number, since it uses less digits than its factorization.

27878841030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183513.

The product of its (nonzero) digits is 602112, while the sum is 48.

The spelling of 27878841030 in words is "twenty-seven billion, eight hundred seventy-eight million, eight hundred forty-one thousand, thirty".