10072702728 has 128 divisors (see below), whose sum is σ = 31173120000. Its totient is φ = 2987357760.

The previous prime is 10072702721. The next prime is 10072702729. The reversal of 10072702728 is 82720727001.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 10072702692 and 10072702701.

It is not an unprimeable number, because it can be changed into a prime (10072702721) 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, 66573 + ... + 156771.

It is an arithmetic number, because the mean of its divisors is an integer number (243540000).

Almost surely, 2^10072702728 is an apocalyptic number.

10072702728 is a gapful number since it is divisible by the number (18) 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 10072702728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15586560000).

10072702728 is an abundant number, since it is smaller than the sum of its proper divisors (21100417272).

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

10072702728 is a wasteful number, since it uses less digits than its factorization.

10072702728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90272 (or 90262 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The spelling of 10072702728 in words is "ten billion, seventy-two million, seven hundred two thousand, seven hundred twenty-eight".