122407478586 has 64 divisors (see below), whose sum is σ = 278173647360. Its totient is φ = 39881249280.

The previous prime is 122407478563. The next prime is 122407478591. The reversal of 122407478586 is 685874704221.

122407478586 is a `hidden beast` number, since 12 + 2 + 4 + 0 + 7 + 47 + 8 + 586 = 666.

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 31 ways as a sum of consecutive naturals, for example, 1899730 + ... + 1963106.

It is an arithmetic number, because the mean of its divisors is an integer number (4346463240).

Almost surely, 2^122407478586 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122407478586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139086823680).

122407478586 is an abundant number, since it is smaller than the sum of its proper divisors (155766168774).

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

122407478586 is a wasteful number, since it uses less digits than its factorization.

122407478586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64196 (or 64190 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The spelling of 122407478586 in words is "one hundred twenty-two billion, four hundred seven million, four hundred seventy-eight thousand, five hundred eighty-six".