86421402423 has 12 divisors (see below), whose sum is σ = 128204723608. Its totient is φ = 56057125680.

The previous prime is 86421402409. The next prime is 86421402433. The reversal of 86421402423 is 32420412468.

86421402423 is a `hidden beast` number, since 8 + 642 + 1 + 4 + 0 + 2 + 4 + 2 + 3 = 666.

It is not a de Polignac number, because 86421402423 - 2¹³ = 86421394231 is a prime.

It is a super-2 number, since 2×86421402423² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86421402433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129761533 + ... + 129762198.

Almost surely, 2^86421402423 is an apocalyptic number.

86421402423 is a deficient number, since it is larger than the sum of its proper divisors (41783321185).

86421402423 is a wasteful number, since it uses less digits than its factorization.

86421402423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259523774 (or 259523771 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 86421402423 in words is "eighty-six billion, four hundred twenty-one million, four hundred two thousand, four hundred twenty-three".