28397367936 has 512 divisors, whose sum is σ = 104960448000. Its totient is φ = 7369850880.

The previous prime is 28397367883. The next prime is 28397367949. The reversal of 28397367936 is 63976379382.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11925466 + ... + 11927846.

It is an arithmetic number, because the mean of its divisors is an integer number (205000875).

Almost surely, 2^28397367936 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 28397367936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52480224000).

28397367936 is an abundant number, since it is smaller than the sum of its proper divisors (76563080064).

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

28397367936 is a wasteful number, since it uses less digits than its factorization.

28397367936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457 (or 2439 counting only the distinct ones).

The product of its digits is 61725888, while the sum is 63.

The spelling of 28397367936 in words is "twenty-eight billion, three hundred ninety-seven million, three hundred sixty-seven thousand, nine hundred thirty-six".