102485091228 has 48 divisors (see below), whose sum is σ = 257577492480. Its totient is φ = 31527647424.

The previous prime is 102485091223. The next prime is 102485091281. The reversal of 102485091228 is 822190584201.

It is a super-2 number, since 2×102485091228² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102485091228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102485091221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 761301 + ... + 885747.

It is an arithmetic number, because the mean of its divisors is an integer number (5366197760).

Almost surely, 2^102485091228 is an apocalyptic number.

It is an amenable number.

102485091228 is an abundant number, since it is smaller than the sum of its proper divisors (155092401252).

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

102485091228 is a wasteful number, since it uses less digits than its factorization.

102485091228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129746 (or 129744 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 102485091228 in words is "one hundred two billion, four hundred eighty-five million, ninety-one thousand, two hundred twenty-eight".