8451669486 has 64 divisors (see below), whose sum is σ = 18672897600. Its totient is φ = 2534138880.

The previous prime is 8451669467. The next prime is 8451669487. The reversal of 8451669486 is 6849661548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8451669487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 609106 + ... + 622826.

It is an arithmetic number, because the mean of its divisors is an integer number (291764025).

Almost surely, 2^8451669486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8451669486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9336448800).

8451669486 is an abundant number, since it is smaller than the sum of its proper divisors (10221228114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8451669486 is a wasteful number, since it uses less digits than its factorization.

8451669486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13941.

The product of its digits is 9953280, while the sum is 57.

The square root of 8451669486 is about 91932.9619124719. The cubic root of 8451669486 is about 2036.9521870297.

The spelling of 8451669486 in words is "eight billion, four hundred fifty-one million, six hundred sixty-nine thousand, four hundred eighty-six".