71651274857 has 8 divisors (see below), whose sum is σ = 74371245312. Its totient is φ = 68956844400.

The previous prime is 71651274853. The next prime is 71651274913. The reversal of 71651274857 is 75847215617.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71651274857 - 2² = 71651274853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71651274799 and 71651274808.

It is not an unprimeable number, because it can be changed into a prime (71651274853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6379283 + ... + 6390504.

It is an arithmetic number, because the mean of its divisors is an integer number (9296405664).

Almost surely, 2^71651274857 is an apocalyptic number.

It is an amenable number.

71651274857 is a deficient number, since it is larger than the sum of its proper divisors (2719970455).

71651274857 is a wasteful number, since it uses less digits than its factorization.

71651274857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12769999.

The product of its digits is 3292800, while the sum is 53.

The spelling of 71651274857 in words is "seventy-one billion, six hundred fifty-one million, two hundred seventy-four thousand, eight hundred fifty-seven".