53423874987 has 12 divisors (see below), whose sum is σ = 82861520616. Its totient is φ = 30527928480.

The previous prime is 53423874983. The next prime is 53423874997. The reversal of 53423874987 is 78947832435.

It is a happy number.

It is not a de Polignac number, because 53423874987 - 2² = 53423874983 is a prime.

It is a super-2 number, since 2×53423874987² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53423874987.

It is not an unprimeable number, because it can be changed into a prime (53423874983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181713714 + ... + 181714007.

It is an arithmetic number, because the mean of its divisors is an integer number (6905126718).

Almost surely, 2^53423874987 is an apocalyptic number.

53423874987 is a deficient number, since it is larger than the sum of its proper divisors (29437645629).

53423874987 is a wasteful number, since it uses less digits than its factorization.

53423874987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363427738 (or 363427731 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 60.

The spelling of 53423874987 in words is "fifty-three billion, four hundred twenty-three million, eight hundred seventy-four thousand, nine hundred eighty-seven".