71972018486 has 8 divisors (see below), whose sum is σ = 108039880080. Its totient is φ = 35958725128.

The previous prime is 71972018473. The next prime is 71972018491. The reversal of 71972018486 is 68481027917.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13638761 + ... + 13644036.

It is an arithmetic number, because the mean of its divisors is an integer number (13504985010).

Almost surely, 2^71972018486 is an apocalyptic number.

71972018486 is a deficient number, since it is larger than the sum of its proper divisors (36067861594).

71972018486 is a wasteful number, since it uses less digits than its factorization.

71972018486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27284118.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 71972018486 in words is "seventy-one billion, nine hundred seventy-two million, eighteen thousand, four hundred eighty-six".