53431489836 has 48 divisors (see below), whose sum is σ = 138575606400. Its totient is φ = 17804129616.

The previous prime is 53431489831. The next prime is 53431489871. The reversal of 53431489836 is 63898413435.

53431489836 is a `hidden beast` number, since 53 + 4 + 31 + 489 + 83 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (53431489831) 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, 220035 + ... + 394053.

It is an arithmetic number, because the mean of its divisors is an integer number (2886991800).

Almost surely, 2^53431489836 is an apocalyptic number.

It is an amenable number.

53431489836 is an abundant number, since it is smaller than the sum of its proper divisors (85144116564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53431489836 is a wasteful number, since it uses less digits than its factorization.

53431489836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176875 (or 176867 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 53431489836 in words is "fifty-three billion, four hundred thirty-one million, four hundred eighty-nine thousand, eight hundred thirty-six".