5142217640 has 64 divisors (see below), whose sum is σ = 13797768960. Its totient is φ = 1686389760.

The previous prime is 5142217609. The next prime is 5142217643. The reversal of 5142217640 is 467122415.

It is a junction number, because it is equal to n+sod(n) for n = 5142217597 and 5142217606.

It is not an unprimeable number, because it can be changed into a prime (5142217643) 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, 392801 + ... + 405680.

It is an arithmetic number, because the mean of its divisors is an integer number (215590140).

Almost surely, 2^5142217640 is an apocalyptic number.

It is an amenable number.

5142217640 is an abundant number, since it is smaller than the sum of its proper divisors (8655551320).

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

5142217640 is a wasteful number, since it uses less digits than its factorization.

5142217640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798522 (or 798518 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 5142217640 is about 71709.2577008018. The cubic root of 5142217640 is about 1726.0371990996.

The spelling of 5142217640 in words is "five billion, one hundred forty-two million, two hundred seventeen thousand, six hundred forty".