861715462463 has 2 divisors, whose sum is σ = 861715462464. Its totient is φ = 861715462462.

The previous prime is 861715462409. The next prime is 861715462481. The reversal of 861715462463 is 364264517168.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 861715462463 - 2¹⁸ = 861715200319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (861715462963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430857731231 + 430857731232.

It is an arithmetic number, because the mean of its divisors is an integer number (430857731232).

Almost surely, 2^861715462463 is an apocalyptic number.

861715462463 is a deficient number, since it is larger than the sum of its proper divisors (1).

861715462463 is an equidigital number, since it uses as much as digits as its factorization.

861715462463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 53.

The spelling of 861715462463 in words is "eight hundred sixty-one billion, seven hundred fifteen million, four hundred sixty-two thousand, four hundred sixty-three".