20090609102 has 4 divisors (see below), whose sum is σ = 30135913656. Its totient is φ = 10045304550.

The previous prime is 20090609087. The next prime is 20090609131. The reversal of 20090609102 is 20190609002.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5022652274 + ... + 5022652277.

It is an arithmetic number, because the mean of its divisors is an integer number (7533978414).

Almost surely, 2^20090609102 is an apocalyptic number.

20090609102 is a deficient number, since it is larger than the sum of its proper divisors (10045304554).

20090609102 is a wasteful number, since it uses less digits than its factorization.

20090609102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10045304553.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 20090609102 in words is "twenty billion, ninety million, six hundred nine thousand, one hundred two".