102555555438 has 32 divisors (see below), whose sum is σ = 234422424576. Its totient is φ = 29300371488.

The previous prime is 102555555437. The next prime is 102555555457. The reversal of 102555555438 is 834555555201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102555555437) 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, 1628220 + ... + 1690032.

It is an arithmetic number, because the mean of its divisors is an integer number (7325700768).

Almost surely, 2^102555555438 is an apocalyptic number.

102555555438 is an abundant number, since it is smaller than the sum of its proper divisors (131866869138).

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

102555555438 is a wasteful number, since it uses less digits than its factorization.

102555555438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101328.

The product of its (nonzero) digits is 3000000, while the sum is 48.

The spelling of 102555555438 in words is "one hundred two billion, five hundred fifty-five million, five hundred fifty-five thousand, four hundred thirty-eight".