102702243418 has 4 divisors (see below), whose sum is σ = 154053365130. Its totient is φ = 51351121708.

The previous prime is 102702243409. The next prime is 102702243437. The reversal of 102702243418 is 814342207201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 99056861289 + 3645382129 = 314733^2 + 60377^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25675560853 + ... + 25675560856.

Almost surely, 2^102702243418 is an apocalyptic number.

102702243418 is a deficient number, since it is larger than the sum of its proper divisors (51351121712).

102702243418 is an equidigital number, since it uses as much as digits as its factorization.

102702243418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51351121711.

The product of its (nonzero) digits is 21504, while the sum is 34.

The spelling of 102702243418 in words is "one hundred two billion, seven hundred two million, two hundred forty-three thousand, four hundred eighteen".