102771530028 has 24 divisors (see below), whose sum is σ = 266444707760. Its totient is φ = 34257176640.

The previous prime is 102771530021. The next prime is 102771530047. The reversal of 102771530028 is 820035177201.

102771530028 is a `hidden beast` number, since 10 + 27 + 71 + 530 + 0 + 28 = 666.

It is a super-2 number, since 2×102771530028² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 102771529974 and 102771530001.

It is not an unprimeable number, because it can be changed into a prime (102771530021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475794013 + ... + 475794228.

Almost surely, 2^102771530028 is an apocalyptic number.

102771530028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

102771530028 is an abundant number, since it is smaller than the sum of its proper divisors (163673177732).

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

102771530028 is a wasteful number, since it uses less digits than its factorization.

102771530028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951588254 (or 951588246 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 102771530028 in words is "one hundred two billion, seven hundred seventy-one million, five hundred thirty thousand, twenty-eight".