99784022651 has 8 divisors (see below), whose sum is σ = 100067410080. Its totient is φ = 99500720832.

The previous prime is 99784022629. The next prime is 99784022693. The reversal of 99784022651 is 15622048799.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99784022651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99784022593 and 99784022602.

It is not an unprimeable number, because it can be changed into a prime (99784022621) 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, 2855855 + ... + 2890583.

It is an arithmetic number, because the mean of its divisors is an integer number (12508426260).

Almost surely, 2^99784022651 is an apocalyptic number.

99784022651 is a deficient number, since it is larger than the sum of its proper divisors (283387429).

99784022651 is a wasteful number, since it uses less digits than its factorization.

99784022651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42805.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 99784022651 in words is "ninety-nine billion, seven hundred eighty-four million, twenty-two thousand, six hundred fifty-one".