28746490518 has 64 divisors (see below), whose sum is σ = 64746613440. Its totient is φ = 9453024000.

The previous prime is 28746490511. The next prime is 28746490519. The reversal of 28746490518 is 81509464782.

It is a happy number.

28746490518 is a `hidden beast` number, since 2 + 87 + 4 + 6 + 49 + 0 + 518 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28746490511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1523196 + ... + 1541952.

It is an arithmetic number, because the mean of its divisors is an integer number (1011665835).

Almost surely, 2^28746490518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28746490518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32373306720).

28746490518 is an abundant number, since it is smaller than the sum of its proper divisors (36000122922).

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

28746490518 is a wasteful number, since it uses less digits than its factorization.

28746490518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19150 (or 19144 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 28746490518 in words is "twenty-eight billion, seven hundred forty-six million, four hundred ninety thousand, five hundred eighteen".