7851573652 has 12 divisors (see below), whose sum is σ = 14797196596. Its totient is φ = 3623803200.

The previous prime is 7851573643. The next prime is 7851573671. The reversal of 7851573652 is 2563751587.

It can be written as a sum of positive squares in 2 ways, for example, as 794901636 + 7056672016 = 28194^2 + 84004^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7851573596 and 7851573605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75495849 + ... + 75495952.

Almost surely, 2^7851573652 is an apocalyptic number.

It is an amenable number.

7851573652 is a deficient number, since it is larger than the sum of its proper divisors (6945622944).

7851573652 is a wasteful number, since it uses less digits than its factorization.

7851573652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150991818 (or 150991816 counting only the distinct ones).

The product of its digits is 1764000, while the sum is 49.

The square root of 7851573652 is about 88609.1059203285. The cubic root of 7851573652 is about 1987.5538449450.

The spelling of 7851573652 in words is "seven billion, eight hundred fifty-one million, five hundred seventy-three thousand, six hundred fifty-two".