8142247041779 has 16 divisors (see below), whose sum is σ = 8194093996032. Its totient is φ = 8090545530048.

The previous prime is 8142247041769. The next prime is 8142247041809. The reversal of 8142247041779 is 9771407422418.

It is a cyclic number.

It is not a de Polignac number, because 8142247041779 - 2¹⁶ = 8142246976243 is a prime.

It is a super-3 number, since 3×8142247041779³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8142247041769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553021712 + ... + 553036434.

It is an arithmetic number, because the mean of its divisors is an integer number (512130874752).

Almost surely, 2^{8142247041779} is an apocalyptic number.

8142247041779 is a deficient number, since it is larger than the sum of its proper divisors (51846954253).

8142247041779 is a wasteful number, since it uses less digits than its factorization.

8142247041779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19426.

The product of its (nonzero) digits is 6322176, while the sum is 56.

The spelling of 8142247041779 in words is "eight trillion, one hundred forty-two billion, two hundred forty-seven million, forty-one thousand, seven hundred seventy-nine".