8451996789 has 8 divisors (see below), whose sum is σ = 11326534560. Its totient is φ = 5606061776.

The previous prime is 8451996769. The next prime is 8451996809. The reversal of 8451996789 is 9876991548.

It is an interprime number because it is at equal distance from previous prime (8451996769) and next prime (8451996809).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8451996789 - 2⁸ = 8451996533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8451996769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7149999 + ... + 7151180.

It is an arithmetic number, because the mean of its divisors is an integer number (1415816820).

Almost surely, 2^8451996789 is an apocalyptic number.

It is an amenable number.

8451996789 is a deficient number, since it is larger than the sum of its proper divisors (2874537771).

8451996789 is a wasteful number, since it uses less digits than its factorization.

8451996789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14301379.

The product of its digits is 39191040, while the sum is 66.

The square root of 8451996789 is about 91934.7420130170. The cubic root of 8451996789 is about 2036.9784813201.

The spelling of 8451996789 in words is "eight billion, four hundred fifty-one million, nine hundred ninety-six thousand, seven hundred eighty-nine".