28373506491600 has 720 divisors, whose sum is σ = 105637824871488. Its totient is φ = 7307912171520.

The previous prime is 28373506491593. The next prime is 28373506491623. The reversal of 28373506491600 is 619460537382.

28373506491600 is a `hidden beast` number, since 2 + 8 + 3 + 73 + 506 + 4 + 9 + 1 + 60 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 492678007 + ... + 492735593.

It is a 2-persistent number, because it is pandigital, and so is 2⋅28373506491600 = 56747012983200, but 3⋅28373506491600 = 85120519474800 is not.

Almost surely, 2^{28373506491600} is an apocalyptic number.

28373506491600 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 28373506491600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52818912435744).

28373506491600 is an abundant number, since it is smaller than the sum of its proper divisors (77264318379888).

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

28373506491600 is a wasteful number, since it uses less digits than its factorization.

28373506491600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57794 (or 57771 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 28373506491600 in words is "twenty-eight trillion, three hundred seventy-three billion, five hundred six million, four hundred ninety-one thousand, six hundred".