514991028198 has 32 divisors (see below), whose sum is σ = 1090608523776. Its totient is φ = 161559992448.

The previous prime is 514991028197. The next prime is 514991028229. The reversal of 514991028198 is 891820199415.

It is a super-2 number, since 2×514991028198² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (514991028197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3412815 + ... + 3560517.

It is an arithmetic number, because the mean of its divisors is an integer number (34081516368).

Almost surely, 2^514991028198 is an apocalyptic number.

514991028198 is an abundant number, since it is smaller than the sum of its proper divisors (575617495578).

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

514991028198 is a wasteful number, since it uses less digits than its factorization.

514991028198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181908.

The product of its (nonzero) digits is 1866240, while the sum is 57.

The spelling of 514991028198 in words is "five hundred fourteen billion, nine hundred ninety-one million, twenty-eight thousand, one hundred ninety-eight".