514744440820 has 24 divisors (see below), whose sum is σ = 1081141050528. Its totient is φ = 205863924000.

The previous prime is 514744440779. The next prime is 514744440823. The reversal of 514744440820 is 28044447415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (514744440823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1990906 + ... + 2234545.

It is an arithmetic number, because the mean of its divisors is an integer number (45047543772).

Almost surely, 2^514744440820 is an apocalyptic number.

It is an amenable number.

514744440820 is an abundant number, since it is smaller than the sum of its proper divisors (566396609708).

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

514744440820 is a wasteful number, since it uses less digits than its factorization.

514744440820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4231551 (or 4231549 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 43.

The spelling of 514744440820 in words is "five hundred fourteen billion, seven hundred forty-four million, four hundred forty thousand, eight hundred twenty".