102185851484 has 24 divisors (see below), whose sum is σ = 188312197920. Its totient is φ = 48423127104.

The previous prime is 102185851457. The next prime is 102185851487. The reversal of 102185851484 is 484158581201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102185851487) 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, 5084999 + ... + 5105054.

It is an arithmetic number, because the mean of its divisors is an integer number (7846341580).

Almost surely, 2^102185851484 is an apocalyptic number.

It is an amenable number.

102185851484 is a deficient number, since it is larger than the sum of its proper divisors (86126346436).

102185851484 is a wasteful number, since it uses less digits than its factorization.

102185851484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10190189 (or 10190187 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 47.

The spelling of 102185851484 in words is "one hundred two billion, one hundred eighty-five million, eight hundred fifty-one thousand, four hundred eighty-four".