28949387620608 has 3240 divisors, whose sum is σ = 119460816034560. Its totient is φ = 6885081907200.

The previous prime is 28949387620597. The next prime is 28949387620733. The reversal of 28949387620608 is 80602678394982.

28949387620608 is a `hidden beast` number, since 2 + 8 + 9 + 4 + 9 + 3 + 8 + 7 + 6 + 2 + 0 + 608 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 359 ways as a sum of consecutive naturals, for example, 474580124898 + ... + 474580124958.

Almost surely, 2^{28949387620608} is an apocalyptic number.

28949387620608 is a gapful number since it is divisible by the number (28) 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 28949387620608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59730408017280).

28949387620608 is an abundant number, since it is smaller than the sum of its proper divisors (90511428413952).

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

28949387620608 is a wasteful number, since it uses less digits than its factorization.

28949387620608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 501645312, while the sum is 72.

The spelling of 28949387620608 in words is "twenty-eight trillion, nine hundred forty-nine billion, three hundred eighty-seven million, six hundred twenty thousand, six hundred eight".