28749037698 has 32 divisors (see below), whose sum is σ = 64014840000. Its totient is φ = 9563799168.

The previous prime is 28749037697. The next prime is 28749037699. The reversal of 28749037698 is 89673094782.

28749037698 is a `hidden beast` number, since 2 + 87 + 490 + 3 + 7 + 69 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (28749037697) and next prime (28749037699).

It is a super-2 number, since 2×28749037698² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28749037697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506511 + ... + 560402.

It is an arithmetic number, because the mean of its divisors is an integer number (2000463750).

Almost surely, 2^28749037698 is an apocalyptic number.

28749037698 is an abundant number, since it is smaller than the sum of its proper divisors (35265802302).

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

28749037698 is a wasteful number, since it uses less digits than its factorization.

28749037698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067423 (or 1067417 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 28749037698 in words is "twenty-eight billion, seven hundred forty-nine million, thirty-seven thousand, six hundred ninety-eight".