71830432144 has 15 divisors (see below), whose sum is σ = 139173539403. Its totient is φ = 35914680048.

The previous prime is 71830432127. The next prime is 71830432199. The reversal of 71830432144 is 44123403817.

The square root of 71830432144 is 268012.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×71830432144² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1038547 + ... + 1105549.

Almost surely, 2^71830432144 is an apocalyptic number.

71830432144 is the 268012-nd square number.

It is an amenable number.

71830432144 is a deficient number, since it is larger than the sum of its proper divisors (67343107259).

71830432144 is an frugal number, since it uses more digits than its factorization.

71830432144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134014 (or 67005 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 71830432144 in words is "seventy-one billion, eight hundred thirty million, four hundred thirty-two thousand, one hundred forty-four".