8469619742421 has 24 divisors (see below), whose sum is σ = 12771400963776. Its totient is φ = 5398548851520.

The previous prime is 8469619742411. The next prime is 8469619742447. The reversal of 8469619742421 is 1242479169648.

8469619742421 is a `hidden beast` number, since 8 + 4 + 6 + 9 + 619 + 7 + 4 + 2 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 8469619742421 - 2¹⁰ = 8469619741397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8469619742411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8496715 + ... + 9441048.

It is an arithmetic number, because the mean of its divisors is an integer number (532141706824).

Almost surely, 2^{8469619742421} is an apocalyptic number.

It is an amenable number.

8469619742421 is a deficient number, since it is larger than the sum of its proper divisors (4301781221355).

8469619742421 is a wasteful number, since it uses less digits than its factorization.

8469619742421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17940073 (or 17940070 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The spelling of 8469619742421 in words is "eight trillion, four hundred sixty-nine billion, six hundred nineteen million, seven hundred forty-two thousand, four hundred twenty-one".