7880655132810 has 128 divisors (see below), whose sum is σ = 21105695059200. Its totient is φ = 2092457214720.

The previous prime is 7880655132767. The next prime is 7880655132821. The reversal of 7880655132810 is 182315560887.

7880655132810 is a `hidden beast` number, since 7 + 8 + 8 + 0 + 6 + 551 + 3 + 2 + 81 + 0 = 666.

It is a super-2 number, since 2×7880655132810² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 109082500 + ... + 109154720.

It is an arithmetic number, because the mean of its divisors is an integer number (164888242650).

Almost surely, 2^{7880655132810} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7880655132810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10552847529600).

7880655132810 is an abundant number, since it is smaller than the sum of its proper divisors (13225039926390).

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

7880655132810 is a wasteful number, since it uses less digits than its factorization.

7880655132810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73973 (or 73967 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 7880655132810 in words is "seven trillion, eight hundred eighty billion, six hundred fifty-five million, one hundred thirty-two thousand, eight hundred ten".