514924021808 has 120 divisors (see below), whose sum is σ = 1184774502912. Its totient is φ = 212366036736.

The previous prime is 514924021783. The next prime is 514924021823. The reversal of 514924021808 is 808120429415.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28908041 + ... + 28925847.

Almost surely, 2^514924021808 is an apocalyptic number.

514924021808 is a gapful number since it is divisible by the number (58) 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 514924021808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (592387251456).

514924021808 is an abundant number, since it is smaller than the sum of its proper divisors (669850481104).

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

514924021808 is a wasteful number, since it uses less digits than its factorization.

514924021808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18187 (or 18152 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The spelling of 514924021808 in words is "five hundred fourteen billion, nine hundred twenty-four million, twenty-one thousand, eight hundred eight".