72103546772852 has 72 divisors (see below), whose sum is σ = 149318131027968. Its totient is φ = 30368524536000.

The previous prime is 72103546772833. The next prime is 72103546772857. The reversal of 72103546772852 is 25827764530127.

It is a junction number, because it is equal to n+sod(n) for n = 72103546772791 and 72103546772800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72103546772857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11141573 + ... + 16381139.

It is an arithmetic number, because the mean of its divisors is an integer number (2073862930944).

Almost surely, 2^{72103546772852} 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 72103546772852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74659065513984).

72103546772852 is an abundant number, since it is smaller than the sum of its proper divisors (77214584255116).

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

72103546772852 is a wasteful number, since it uses less digits than its factorization.

72103546772852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5240797 (or 5240788 counting only the distinct ones).

The product of its (nonzero) digits is 39513600, while the sum is 59.

The spelling of 72103546772852 in words is "seventy-two trillion, one hundred three billion, five hundred forty-six million, seven hundred seventy-two thousand, eight hundred fifty-two".