5731721270 has 32 divisors (see below), whose sum is σ = 11371068576. Its totient is φ = 2062771200.

The previous prime is 5731721267. The next prime is 5731721287. The reversal of 5731721270 is 721271375.

It is a self number, because there is not a number n which added to its sum of digits gives 5731721270.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257921 + ... + 279260.

It is an arithmetic number, because the mean of its divisors is an integer number (355345893).

Almost surely, 2^5731721270 is an apocalyptic number.

5731721270 is a deficient number, since it is larger than the sum of its proper divisors (5639347306).

5731721270 is a wasteful number, since it uses less digits than its factorization.

5731721270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537296.

The product of its (nonzero) digits is 20580, while the sum is 35.

The square root of 5731721270 is about 75708.1321259480. The cubic root of 5731721270 is about 1789.6235561802.

It can be divided in two parts, 57317 and 21270, that added together give a palindrome (78587).

The spelling of 5731721270 in words is "five billion, seven hundred thirty-one million, seven hundred twenty-one thousand, two hundred seventy".