27427500156 has 192 divisors, whose sum is σ = 76785730560. Its totient is φ = 7456665600.

The previous prime is 27427500059. The next prime is 27427500157. The reversal of 27427500156 is 65100572472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27427500157) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68397556 + ... + 68397956.

It is an arithmetic number, because the mean of its divisors is an integer number (399925680).

Almost surely, 2^27427500156 is an apocalyptic number.

It is a pronic number, being equal to 165612×165613.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27427500156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38392865280).

27427500156 is an abundant number, since it is smaller than the sum of its proper divisors (49358230404).

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

27427500156 is a wasteful number, since it uses less digits than its factorization.

27427500156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 882 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 27427500156 in words is "twenty-seven billion, four hundred twenty-seven million, five hundred thousand, one hundred fifty-six".