7872028653 has 16 divisors (see below), whose sum is σ = 11269984896. Its totient is φ = 4869742080.

The previous prime is 7872028639. The next prime is 7872028669. The reversal of 7872028653 is 3568202787.

It is not a de Polignac number, because 7872028653 - 2⁸ = 7872028397 is a prime.

It is a super-2 number, since 2×7872028653² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7872028673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1083376 + ... + 1090617.

It is an arithmetic number, because the mean of its divisors is an integer number (704374056).

Almost surely, 2^7872028653 is an apocalyptic number.

It is an amenable number.

7872028653 is a deficient number, since it is larger than the sum of its proper divisors (3397956243).

7872028653 is a wasteful number, since it uses less digits than its factorization.

7872028653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174084.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The square root of 7872028653 is about 88724.4535232537. The cubic root of 7872028653 is about 1989.2783468683.

The spelling of 7872028653 in words is "seven billion, eight hundred seventy-two million, twenty-eight thousand, six hundred fifty-three".