28058178368 has 224 divisors, whose sum is σ = 66433720320. Its totient is φ = 11628288000.

The previous prime is 28058178367. The next prime is 28058178409. The reversal of 28058178368 is 86387185082.

It is a super-2 number, since 2×28058178368² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28058178367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27214013 + ... + 27215043.

Almost surely, 2^28058178368 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 28058178368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33216860160).

28058178368 is an abundant number, since it is smaller than the sum of its proper divisors (38375541952).

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

28058178368 is a wasteful number, since it uses less digits than its factorization.

28058178368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 56.

The spelling of 28058178368 in words is "twenty-eight billion, fifty-eight million, one hundred seventy-eight thousand, three hundred sixty-eight".