7810632872 has 64 divisors (see below), whose sum is σ = 17607888000. Its totient is φ = 3177167616.

The previous prime is 7810632871. The next prime is 7810632877. The reversal of 7810632872 is 2782360187.

It is a happy number.

It is a super-2 number, since 2×7810632872² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7810632871) 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, 55058 + ... + 136574.

It is an arithmetic number, because the mean of its divisors is an integer number (275123250).

Almost surely, 2^7810632872 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 7810632872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8803944000).

7810632872 is an abundant number, since it is smaller than the sum of its proper divisors (9797255128).

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

7810632872 is a wasteful number, since it uses less digits than its factorization.

7810632872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81618 (or 81614 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 7810632872 is about 88377.7849462182. The cubic root of 7810632872 is about 1984.0932287150.

The spelling of 7810632872 in words is "seven billion, eight hundred ten million, six hundred thirty-two thousand, eight hundred seventy-two".