71748744354 has 32 divisors (see below), whose sum is σ = 182219034240. Its totient is φ = 20499641136.

The previous prime is 71748744323. The next prime is 71748744371. The reversal of 71748744354 is 45344784717.

It is a happy number.

71748744354 is a `hidden beast` number, since 7 + 1 + 74 + 87 + 443 + 54 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 71748744354.

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 15 ways as a sum of consecutive naturals, for example, 94905369 + ... + 94906124.

It is an arithmetic number, because the mean of its divisors is an integer number (5694344820).

Almost surely, 2^71748744354 is an apocalyptic number.

71748744354 is an abundant number, since it is smaller than the sum of its proper divisors (110470289886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71748744354 is a wasteful number, since it uses less digits than its factorization.

71748744354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189811511 (or 189811505 counting only the distinct ones).

The product of its digits is 10536960, while the sum is 54.

The spelling of 71748744354 in words is "seventy-one billion, seven hundred forty-eight million, seven hundred forty-four thousand, three hundred fifty-four".