52123421499 has 16 divisors (see below), whose sum is σ = 72455910912. Its totient is φ = 33300435168.

The previous prime is 52123421431. The next prime is 52123421507. The reversal of 52123421499 is 99412432125.

It is not a de Polignac number, because 52123421499 - 2¹¹ = 52123419451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52123421499.

It is not an unprimeable number, because it can be changed into a prime (52123421429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3805027 + ... + 3818700.

It is an arithmetic number, because the mean of its divisors is an integer number (4528494432).

Almost surely, 2^52123421499 is an apocalyptic number.

52123421499 is a deficient number, since it is larger than the sum of its proper divisors (20332489413).

52123421499 is a wasteful number, since it uses less digits than its factorization.

52123421499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7623826.

The product of its digits is 155520, while the sum is 42.

The spelling of 52123421499 in words is "fifty-two billion, one hundred twenty-three million, four hundred twenty-one thousand, four hundred ninety-nine".