7687826812 has 12 divisors (see below), whose sum is σ = 13456033416. Its totient is φ = 3843245840.

The previous prime is 7687826807. The next prime is 7687826813. The reversal of 7687826812 is 2186287867.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7687826813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140518 + ... + 187405.

It is an arithmetic number, because the mean of its divisors is an integer number (1121336118).

Almost surely, 2^7687826812 is an apocalyptic number.

It is an amenable number.

7687826812 is a deficient number, since it is larger than the sum of its proper divisors (5768206604).

7687826812 is a wasteful number, since it uses less digits than its factorization.

7687826812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333788 (or 333786 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 55.

The square root of 7687826812 is about 87680.2532614955. The cubic root of 7687826812 is about 1973.6396603247.

The spelling of 7687826812 in words is "seven billion, six hundred eighty-seven million, eight hundred twenty-six thousand, eight hundred twelve".