78810662137230 has 384 divisors, whose sum is σ = 235577889216000. Its totient is φ = 18692921733120.

The previous prime is 78810662137219. The next prime is 78810662137231. The reversal of 78810662137230 is 3273126601887.

It is a happy number.

78810662137230 is a `hidden beast` number, since 7 + 8 + 8 + 1 + 0 + 6 + 621 + 3 + 7 + 2 + 3 + 0 = 666.

It is a super-2 number, since 2×78810662137230² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78810662137231) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 606306145 + ... + 606436115.

It is an arithmetic number, because the mean of its divisors is an integer number (613484086500).

Almost surely, 2^{78810662137230} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78810662137230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117788944608000).

78810662137230 is an abundant number, since it is smaller than the sum of its proper divisors (156767227078770).

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

78810662137230 is a wasteful number, since it uses less digits than its factorization.

78810662137230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130449 (or 130426 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 78810662137230 in words is "seventy-eight trillion, eight hundred ten billion, six hundred sixty-two million, one hundred thirty-seven thousand, two hundred thirty".