86620650547 has 2 divisors, whose sum is σ = 86620650548. Its totient is φ = 86620650546.

The previous prime is 86620650517. The next prime is 86620650607. The reversal of 86620650547 is 74505602668.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86620650547 - 2¹⁹ = 86620126259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86620650547.

It is not a weakly prime, because it can be changed into another prime (86620650517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43310325273 + 43310325274.

It is an arithmetic number, because the mean of its divisors is an integer number (43310325274).

Almost surely, 2^86620650547 is an apocalyptic number.

86620650547 is a deficient number, since it is larger than the sum of its proper divisors (1).

86620650547 is an equidigital number, since it uses as much as digits as its factorization.

86620650547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 86620650547 in words is "eighty-six billion, six hundred twenty million, six hundred fifty thousand, five hundred forty-seven".