71651938742 has 32 divisors (see below), whose sum is σ = 116701772544. Its totient is φ = 32860595200.

The previous prime is 71651938733. The next prime is 71651938763. The reversal of 71651938742 is 24783915617.

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 15 ways as a sum of consecutive naturals, for example, 1284443 + ... + 1339065.

It is an arithmetic number, because the mean of its divisors is an integer number (3646930392).

Almost surely, 2^71651938742 is an apocalyptic number.

71651938742 is a deficient number, since it is larger than the sum of its proper divisors (45049833802).

71651938742 is a wasteful number, since it uses less digits than its factorization.

71651938742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55624.

The product of its digits is 2540160, while the sum is 53.

The spelling of 71651938742 in words is "seventy-one billion, six hundred fifty-one million, nine hundred thirty-eight thousand, seven hundred forty-two".