102730392650 has 12 divisors (see below), whose sum is σ = 191078530422. Its totient is φ = 41092157040.

The previous prime is 102730392637. The next prime is 102730392691. The reversal of 102730392650 is 56293037201.

It can be written as a sum of positive squares in 3 ways, for example, as 69467563489 + 33262829161 = 263567^2 + 182381^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1027303877 + ... + 1027303976.

Almost surely, 2^102730392650 is an apocalyptic number.

102730392650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102730392650 is a deficient number, since it is larger than the sum of its proper divisors (88348137772).

102730392650 is a wasteful number, since it uses less digits than its factorization.

102730392650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054607865 (or 2054607860 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 38.

The spelling of 102730392650 in words is "one hundred two billion, seven hundred thirty million, three hundred ninety-two thousand, six hundred fifty".