9181819101002 has 4 divisors (see below), whose sum is σ = 13772728651506. Its totient is φ = 4590909550500.

The previous prime is 9181819100983. The next prime is 9181819101041. The reversal of 9181819101002 is 2001019181819.

9181819101002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 8564747580481 + 617071520521 = 2926559^2 + 785539^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2295454775249 + ... + 2295454775252.

Almost surely, 2^{9181819101002} is an apocalyptic number.

9181819101002 is a deficient number, since it is larger than the sum of its proper divisors (4590909550504).

9181819101002 is a wasteful number, since it uses less digits than its factorization.

9181819101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4590909550503.

The product of its (nonzero) digits is 10368, while the sum is 41.

The spelling of 9181819101002 in words is "nine trillion, one hundred eighty-one billion, eight hundred nineteen million, one hundred one thousand, two".