71466486751 has 4 divisors (see below), whose sum is σ = 77963440104. Its totient is φ = 64969533400.

The previous prime is 71466486743. The next prime is 71466486761. The reversal of 71466486751 is 15768466417.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71466486751 - 2³ = 71466486743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71466486692 and 71466486701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71466486701) 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, 3248476660 + ... + 3248476681.

It is an arithmetic number, because the mean of its divisors is an integer number (19490860026).

Almost surely, 2^71466486751 is an apocalyptic number.

71466486751 is a deficient number, since it is larger than the sum of its proper divisors (6496953353).

71466486751 is a wasteful number, since it uses less digits than its factorization.

71466486751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6496953352.

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

The spelling of 71466486751 in words is "seventy-one billion, four hundred sixty-six million, four hundred eighty-six thousand, seven hundred fifty-one".