71745405356 has 12 divisors (see below), whose sum is σ = 127274383992. Its totient is φ = 35381295648.

The previous prime is 71745405353. The next prime is 71745405359. The reversal of 71745405356 is 65350454717.

It is an interprime number because it is at equal distance from previous prime (71745405353) and next prime (71745405359).

It is a self number, because there is not a number n which added to its sum of digits gives 71745405356.

It is not an unprimeable number, because it can be changed into a prime (71745405353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122851430 + ... + 122852013.

It is an arithmetic number, because the mean of its divisors is an integer number (10606198666).

Almost surely, 2^71745405356 is an apocalyptic number.

It is an amenable number.

71745405356 is a deficient number, since it is larger than the sum of its proper divisors (55528978636).

71745405356 is a wasteful number, since it uses less digits than its factorization.

71745405356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245703520 (or 245703518 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 47.

The spelling of 71745405356 in words is "seventy-one billion, seven hundred forty-five million, four hundred five thousand, three hundred fifty-six".