71742259648 has 28 divisors (see below), whose sum is σ = 142412359320. Its totient is φ = 35858830592.

The previous prime is 71742259643. The next prime is 71742259669. The reversal of 71742259648 is 84695224717.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71742259643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2611 + ... + 378802.

It is an arithmetic number, because the mean of its divisors is an integer number (5086155690).

Almost surely, 2^71742259648 is an apocalyptic number.

It is an amenable number.

71742259648 is a deficient number, since it is larger than the sum of its proper divisors (70670099672).

71742259648 is a wasteful number, since it uses less digits than its factorization.

71742259648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384364 (or 384354 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 55.

The spelling of 71742259648 in words is "seventy-one billion, seven hundred forty-two million, two hundred fifty-nine thousand, six hundred forty-eight".