8451786463 has 12 divisors (see below), whose sum is σ = 8748536544. Its totient is φ = 8164804800.

The previous prime is 8451786407. The next prime is 8451786467. The reversal of 8451786463 is 3646871548.

It is a de Polignac number, because none of the positive numbers 2^k-8451786463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8451786463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8451786467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 562458 + ... + 577288.

It is an arithmetic number, because the mean of its divisors is an integer number (729044712).

Almost surely, 2^8451786463 is an apocalyptic number.

8451786463 is a deficient number, since it is larger than the sum of its proper divisors (296750081).

8451786463 is a wasteful number, since it uses less digits than its factorization.

8451786463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15486 (or 15455 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 52.

The square root of 8451786463 is about 91933.5981184246. The cubic root of 8451786463 is about 2036.9615845993.

The spelling of 8451786463 in words is "eight billion, four hundred fifty-one million, seven hundred eighty-six thousand, four hundred sixty-three".