102542412258 has 96 divisors (see below), whose sum is σ = 261159679872. Its totient is φ = 28667520000.

The previous prime is 102542412229. The next prime is 102542412277. The reversal of 102542412258 is 852214245201.

102542412258 is a `hidden beast` number, since 1 + 0 + 2 + 5 + 424 + 1 + 225 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5181883 + ... + 5201633.

It is an arithmetic number, because the mean of its divisors is an integer number (2720413332).

Almost surely, 2^102542412258 is an apocalyptic number.

102542412258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102542412258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130579839936).

102542412258 is an abundant number, since it is smaller than the sum of its proper divisors (158617267614).

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

102542412258 is a wasteful number, since it uses less digits than its factorization.

102542412258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21800 (or 21797 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

Adding to 102542412258 its reverse (852214245201), we get a palindrome (954756657459).

The spelling of 102542412258 in words is "one hundred two billion, five hundred forty-two million, four hundred twelve thousand, two hundred fifty-eight".