28699898604 has 192 divisors, whose sum is σ = 76204800000. Its totient is φ = 8345272320.

The previous prime is 28699898597. The next prime is 28699898609. The reversal of 28699898604 is 40689899682.

It is a super-2 number, since 2×28699898604² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28699898609) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63919372 + ... + 63919820.

It is an arithmetic number, because the mean of its divisors is an integer number (396900000).

Almost surely, 2^28699898604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28699898604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38102400000).

28699898604 is an abundant number, since it is smaller than the sum of its proper divisors (47504901396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28699898604 is a wasteful number, since it uses less digits than its factorization.

28699898604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 107495424, while the sum is 69.

The spelling of 28699898604 in words is "twenty-eight billion, six hundred ninety-nine million, eight hundred ninety-eight thousand, six hundred four".