71652761651 has 8 divisors (see below), whose sum is σ = 72163786464. Its totient is φ = 71142712960.

The previous prime is 71652761641. The next prime is 71652761689. The reversal of 71652761651 is 15616725617.

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 a de Polignac number, because none of the positive numbers 2^k-71652761651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71652761596 and 71652761605.

It is not an unprimeable number, because it can be changed into a prime (71652761641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 96380 + ... + 390633.

It is an arithmetic number, because the mean of its divisors is an integer number (9020473308).

Almost surely, 2^71652761651 is an apocalyptic number.

71652761651 is a deficient number, since it is larger than the sum of its proper divisors (511024813).

71652761651 is a wasteful number, since it uses less digits than its factorization.

71652761651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488061.

The product of its digits is 529200, while the sum is 47.

The spelling of 71652761651 in words is "seventy-one billion, six hundred fifty-two million, seven hundred sixty-one thousand, six hundred fifty-one".