153939232836 has 90 divisors (see below), whose sum is σ = 407591417310. Its totient is φ = 50662879488.

The previous prime is 153939232781. The next prime is 153939232849. The reversal of 153939232836 is 638232939351.

153939232836 is a `hidden beast` number, since 1 + 539 + 3 + 9 + 23 + 2 + 83 + 6 = 666.

153939232836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 150703898436 + 3235334400 = 388206^2 + 56880^2 .

It is a super-2 number, since 2×153939232836² (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

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 29 ways as a sum of consecutive naturals, for example, 1984020 + ... + 2060148.

Almost surely, 2^153939232836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 153939232836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203795708655).

153939232836 is an abundant number, since it is smaller than the sum of its proper divisors (253652184474).

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

153939232836 is an equidigital number, since it uses as much as digits as its factorization.

153939232836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76303 (or 76213 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 54.

The spelling of 153939232836 in words is "one hundred fifty-three billion, nine hundred thirty-nine million, two hundred thirty-two thousand, eight hundred thirty-six".