642412124363 has 4 divisors (see below), whose sum is σ = 643506523800. Its totient is φ = 641317724928.

The previous prime is 642412124357. The next prime is 642412124371. The reversal of 642412124363 is 363421214246.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 642412124363 - 2²⁴ = 642395347147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (642412114363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547198838 + ... + 547200011.

It is an arithmetic number, because the mean of its divisors is an integer number (160876630950).

Almost surely, 2^642412124363 is an apocalyptic number.

642412124363 is a deficient number, since it is larger than the sum of its proper divisors (1094399437).

642412124363 is a wasteful number, since it uses less digits than its factorization.

642412124363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094399436.

The product of its digits is 165888, while the sum is 38.

The spelling of 642412124363 in words is "six hundred forty-two billion, four hundred twelve million, one hundred twenty-four thousand, three hundred sixty-three".