102858399890 has 64 divisors (see below), whose sum is σ = 191426457600. Its totient is φ = 39775303104.

The previous prime is 102858399883. The next prime is 102858399929. The reversal of 102858399890 is 98993858201.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 10915601 + ... + 10925019.

It is an arithmetic number, because the mean of its divisors is an integer number (2991038400).

Almost surely, 2^102858399890 is an apocalyptic number.

102858399890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102858399890 is a deficient number, since it is larger than the sum of its proper divisors (88568057710).

102858399890 is a wasteful number, since it uses less digits than its factorization.

102858399890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9791.

The product of its (nonzero) digits is 11197440, while the sum is 62.

The spelling of 102858399890 in words is "one hundred two billion, eight hundred fifty-eight million, three hundred ninety-nine thousand, eight hundred ninety".