17378542128 has 80 divisors (see below), whose sum is σ = 50037333120. Its totient is φ = 5165134848.

The previous prime is 17378542127. The next prime is 17378542151. The reversal of 17378542128 is 82124587371.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (17378542127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544950 + ... + 575957.

It is an arithmetic number, because the mean of its divisors is an integer number (625466664).

Almost surely, 2^17378542128 is an apocalyptic number.

It is an amenable number.

17378542128 is an abundant number, since it is smaller than the sum of its proper divisors (32658790992).

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

17378542128 is a wasteful number, since it uses less digits than its factorization.

17378542128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120954 (or 1120948 counting only the distinct ones).

The product of its digits is 752640, while the sum is 48.

The spelling of 17378542128 in words is "seventeen billion, three hundred seventy-eight million, five hundred forty-two thousand, one hundred twenty-eight".