5142321620 has 12 divisors (see below), whose sum is σ = 10798875444. Its totient is φ = 2056928640.

The previous prime is 5142321607. The next prime is 5142321629. The reversal of 5142321620 is 261232415.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3737121424 + 1405200196 = 61132^2 + 37486^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5142321620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5142321629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128558021 + ... + 128558060.

It is an arithmetic number, because the mean of its divisors is an integer number (899906287).

Almost surely, 2^5142321620 is an apocalyptic number.

It is an amenable number.

5142321620 is an abundant number, since it is smaller than the sum of its proper divisors (5656553824).

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

5142321620 is a wasteful number, since it uses less digits than its factorization.

5142321620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257116090 (or 257116088 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 5142321620 is about 71709.9827081279. The cubic root of 5142321620 is about 1726.0488329997.

The spelling of 5142321620 in words is "five billion, one hundred forty-two million, three hundred twenty-one thousand, six hundred twenty".