102542355421452 has 36 divisors (see below), whose sum is σ = 259205548460040. Its totient is φ = 34180618835712.

The previous prime is 102542355421433. The next prime is 102542355421459. The reversal of 102542355421452 is 254124553245201.

102542355421452 is a `hidden beast` number, since 1 + 0 + 2 + 5 + 4 + 23 + 554 + 21 + 4 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 102542355421398 and 102542355421407.

It is not an unprimeable number, because it can be changed into a prime (102542355421459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 687199 + ... + 14337257.

It is an arithmetic number, because the mean of its divisors is an integer number (7200154123890).

Almost surely, 2^{102542355421452} is an apocalyptic number.

102542355421452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102542355421452 is an abundant number, since it is smaller than the sum of its proper divisors (156663193038588).

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

102542355421452 is a wasteful number, since it uses less digits than its factorization.

102542355421452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13858742 (or 13858737 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 45.

The spelling of 102542355421452 in words is "one hundred two trillion, five hundred forty-two billion, three hundred fifty-five million, four hundred twenty-one thousand, four hundred fifty-two".