28634094720 has 1152 divisors, whose sum is σ = 131258724480. Its totient is φ = 5677056000.

The previous prime is 28634094707. The next prime is 28634094737. The reversal of 28634094720 is 2749043682.

28634094720 is a `hidden beast` number, since 2 + 8 + 634 + 0 + 9 + 4 + 7 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a super-2 number, since 2×28634094720² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 71406520 + ... + 71406920.

It is an arithmetic number, because the mean of its divisors is an integer number (113939865).

Almost surely, 2^28634094720 is an apocalyptic number.

28634094720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28634094720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65629362240).

28634094720 is an abundant number, since it is smaller than the sum of its proper divisors (102624629760).

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

28634094720 is a wasteful number, since it uses less digits than its factorization.

28634094720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 28634094720 in words is "twenty-eight billion, six hundred thirty-four million, ninety-four thousand, seven hundred twenty".