6861525630 has 16 divisors (see below), whose sum is σ = 16467661584. Its totient is φ = 1829740160.

The previous prime is 6861525611. The next prime is 6861525667. The reversal of 6861525630 is 365251686.

It is a happy number.

It is a super-2 number, since 2×6861525630² = 94161067942293793800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114358731 + ... + 114358790.

It is an arithmetic number, because the mean of its divisors is an integer number (1029228849).

Almost surely, 2^6861525630 is an apocalyptic number.

6861525630 is an abundant number, since it is smaller than the sum of its proper divisors (9606135954).

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

6861525630 is a wasteful number, since it uses less digits than its factorization.

6861525630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228717531.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 6861525630 is about 82834.3263991445. The cubic root of 6861525630 is about 1900.2331782148.

The spelling of 6861525630 in words is "six billion, eight hundred sixty-one million, five hundred twenty-five thousand, six hundred thirty".