17487742428 has 48 divisors (see below), whose sum is σ = 48826179360. Its totient is φ = 5380843392.

The previous prime is 17487742417. The next prime is 17487742457. The reversal of 17487742428 is 82424778471.

17487742428 is a `hidden beast` number, since 1 + 74 + 87 + 74 + 2 + 428 = 666.

It is a super-2 number, since 2×17487742428² (a number of 21 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 6226425 + ... + 6229232.

It is an arithmetic number, because the mean of its divisors is an integer number (1017212070).

Almost surely, 2^17487742428 is an apocalyptic number.

17487742428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

17487742428 is an abundant number, since it is smaller than the sum of its proper divisors (31338436932).

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

17487742428 is a wasteful number, since it uses less digits than its factorization.

17487742428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12455683 (or 12455675 counting only the distinct ones).

The product of its digits is 5619712, while the sum is 54.

The spelling of 17487742428 in words is "seventeen billion, four hundred eighty-seven million, seven hundred forty-two thousand, four hundred twenty-eight".