71344916451 has 8 divisors (see below), whose sum is σ = 105696172560. Its totient is φ = 47563277616.

The previous prime is 71344916443. The next prime is 71344916471. The reversal of 71344916451 is 15461944317.

71344916451 is a `hidden beast` number, since 71 + 3 + 44 + 91 + 6 + 451 = 666.

It is not a de Polignac number, because 71344916451 - 2³ = 71344916443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71344916397 and 71344916406.

It is not an unprimeable number, because it can be changed into a prime (71344916441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1321202130 + ... + 1321202183.

It is an arithmetic number, because the mean of its divisors is an integer number (13212021570).

Almost surely, 2^71344916451 is an apocalyptic number.

71344916451 is a deficient number, since it is larger than the sum of its proper divisors (34351256109).

71344916451 is a wasteful number, since it uses less digits than its factorization.

71344916451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642404322 (or 2642404316 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The spelling of 71344916451 in words is "seventy-one billion, three hundred forty-four million, nine hundred sixteen thousand, four hundred fifty-one".