10989998902 has 8 divisors (see below), whose sum is σ = 16636237200. Its totient is φ = 5444586504.

The previous prime is 10989998893. The next prime is 10989998923. The reversal of 10989998902 is 20989998901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10989998902² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25206202 + ... + 25206637.

It is an arithmetic number, because the mean of its divisors is an integer number (2079529650).

Almost surely, 2^10989998902 is an apocalyptic number.

10989998902 is a deficient number, since it is larger than the sum of its proper divisors (5646238298).

10989998902 is a wasteful number, since it uses less digits than its factorization.

10989998902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50412950.

The product of its (nonzero) digits is 7558272, while the sum is 64.

Subtracting 10989998902 from its reverse (20989998901), we obtain a palindrome (9999999999).

It can be divided in two parts, 1098 and 9998902, that added together give a 7-th power (10000000 = 10⁷).

The spelling of 10989998902 in words is "ten billion, nine hundred eighty-nine million, nine hundred ninety-eight thousand, nine hundred two".