136573642452 has 96 divisors (see below), whose sum is σ = 344971509120. Its totient is φ = 41804398080.

The previous prime is 136573642451. The next prime is 136573642477. The reversal of 136573642452 is 254246375631.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136573642451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34030798 + ... + 34034810.

It is an arithmetic number, because the mean of its divisors is an integer number (3593453220).

Almost surely, 2^136573642452 is an apocalyptic number.

136573642452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136573642452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172485754560).

136573642452 is an abundant number, since it is smaller than the sum of its proper divisors (208397866668).

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

136573642452 is a wasteful number, since it uses less digits than its factorization.

136573642452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5113 (or 5111 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 48.

The spelling of 136573642452 in words is "one hundred thirty-six billion, five hundred seventy-three million, six hundred forty-two thousand, four hundred fifty-two".