8421440949612 has 24 divisors (see below), whose sum is σ = 21833365425200. Its totient is φ = 2807146983168.

The previous prime is 8421440949589. The next prime is 8421440949641. The reversal of 8421440949612 is 2169490441248.

8421440949612 is a `hidden beast` number, since 8 + 4 + 2 + 14 + 4 + 0 + 9 + 4 + 9 + 612 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38988152437 + ... + 38988152652.

Almost surely, 2^{8421440949612} is an apocalyptic number.

It is an amenable number.

8421440949612 is an abundant number, since it is smaller than the sum of its proper divisors (13411924475588).

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

8421440949612 is a wasteful number, since it uses less digits than its factorization.

8421440949612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77976305102 (or 77976305094 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 8421440949612 in words is "eight trillion, four hundred twenty-one billion, four hundred forty million, nine hundred forty-nine thousand, six hundred twelve".