99789607570 has 16 divisors (see below), whose sum is σ = 187430915520. Its totient is φ = 38180371504.

The previous prime is 99789607559. The next prime is 99789607573. The reversal of 99789607570 is 7570698799.

It is a junction number, because it is equal to n+sod(n) for n = 99789607496 and 99789607505.

It is not an unprimeable number, because it can be changed into a prime (99789607573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216933700 + ... + 216934159.

It is an arithmetic number, because the mean of its divisors is an integer number (11714432220).

Almost surely, 2^99789607570 is an apocalyptic number.

99789607570 is a deficient number, since it is larger than the sum of its proper divisors (87641307950).

99789607570 is a wasteful number, since it uses less digits than its factorization.

99789607570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433867889.

The product of its (nonzero) digits is 60011280, while the sum is 67.

The spelling of 99789607570 in words is "ninety-nine billion, seven hundred eighty-nine million, six hundred seven thousand, five hundred seventy".