7861087052 has 108 divisors (see below), whose sum is σ = 17571395016. Its totient is φ = 3066336000.

The previous prime is 7861087051. The next prime is 7861087057. The reversal of 7861087052 is 2507801687.

It is a junction number, because it is equal to n+sod(n) for n = 7861086994 and 7861087012.

It is not an unprimeable number, because it can be changed into a prime (7861087051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2416427 + ... + 2419677.

It is an arithmetic number, because the mean of its divisors is an integer number (162698102).

Almost surely, 2^7861087052 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 7861087052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8785697508).

7861087052 is an abundant number, since it is smaller than the sum of its proper divisors (9710307964).

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

7861087052 is a wasteful number, since it uses less digits than its factorization.

7861087052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368 (or 3346 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 44.

The square root of 7861087052 is about 88662.7715109335. The cubic root of 7861087052 is about 1988.3562642605.

The spelling of 7861087052 in words is "seven billion, eight hundred sixty-one million, eighty-seven thousand, fifty-two".