609774958426050 has 144 divisors (see below), whose sum is σ = 1651082935125312. Its totient is φ = 161337109564800.

The previous prime is 609774958426021. The next prime is 609774958426087. The reversal of 609774958426050 is 50624859477906.

609774958426050 is a `hidden beast` number, since 6 + 0 + 9 + 7 + 7 + 4 + 9 + 5 + 8 + 4 + 2 + 605 + 0 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 609774958426050.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 42573907 + ... + 55064393.

It is an arithmetic number, because the mean of its divisors is an integer number (11465853716148).

Almost surely, 2^{609774958426050} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 609774958426050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825541467562656).

609774958426050 is an abundant number, since it is smaller than the sum of its proper divisors (1041307976699262).

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

609774958426050 is a wasteful number, since it uses less digits than its factorization.

609774958426050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12491353 (or 12491345 counting only the distinct ones).

The product of its (nonzero) digits is 914457600, while the sum is 72.

The spelling of 609774958426050 in words is "six hundred nine trillion, seven hundred seventy-four billion, nine hundred fifty-eight million, four hundred twenty-six thousand, fifty".