6454187994842 has 16 divisors (see below), whose sum is σ = 11082254742720. Its totient is φ = 2761597452768.

The previous prime is 6454187994811. The next prime is 6454187994857. The reversal of 6454187994842 is 2484997814546.

It is a happy number.

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, 373584092 + ... + 373601367.

It is an arithmetic number, because the mean of its divisors is an integer number (692640921420).

Almost surely, 2^{6454187994842} is an apocalyptic number.

6454187994842 is a deficient number, since it is larger than the sum of its proper divisors (4628066747878).

6454187994842 is a wasteful number, since it uses less digits than its factorization.

6454187994842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747186085.

The product of its digits is 557383680, while the sum is 71.

The spelling of 6454187994842 in words is "six trillion, four hundred fifty-four billion, one hundred eighty-seven million, nine hundred ninety-four thousand, eight hundred forty-two".