78506633141620 has 24 divisors (see below), whose sum is σ = 164864549556000. Its totient is φ = 31402535169312.

The previous prime is 78506633141567. The next prime is 78506633141623. The reversal of 78506633141620 is 2614133660587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78506633141623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1827030 + ... + 12662989.

It is an arithmetic number, because the mean of its divisors is an integer number (6869356231500).

Almost surely, 2^{78506633141620} is an apocalyptic number.

It is an amenable number.

78506633141620 is an abundant number, since it is smaller than the sum of its proper divisors (86357916414380).

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

78506633141620 is a wasteful number, since it uses less digits than its factorization.

78506633141620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14760927 (or 14760925 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 78506633141620 in words is "seventy-eight trillion, five hundred six billion, six hundred thirty-three million, one hundred forty-one thousand, six hundred twenty".