5142046721 has 12 divisors (see below), whose sum is σ = 6057285120. Its totient is φ = 4351674600.

The previous prime is 5142046717. The next prime is 5142046751. The reversal of 5142046721 is 1276402415.

It is not a de Polignac number, because 5142046721 - 2² = 5142046717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5142046751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 660305 + ... + 668046.

It is an arithmetic number, because the mean of its divisors is an integer number (504773760).

Almost surely, 2^5142046721 is an apocalyptic number.

It is an amenable number.

5142046721 is a deficient number, since it is larger than the sum of its proper divisors (915238399).

5142046721 is a wasteful number, since it uses less digits than its factorization.

5142046721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328444 (or 1328437 counting only the distinct ones).

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

The square root of 5142046721 is about 71708.0659410083. The cubic root of 5142046721 is about 1726.0180753258.

The spelling of 5142046721 in words is "five billion, one hundred forty-two million, forty-six thousand, seven hundred twenty-one".