84617390061 has 24 divisors (see below), whose sum is σ = 129685121280. Its totient is φ = 52982376576.

The previous prime is 84617389951. The next prime is 84617390087. The reversal of 84617390061 is 16009371648.

It is a happy number.

It is not a de Polignac number, because 84617390061 - 2¹¹ = 84617388013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84617389989 and 84617390016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84617390761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 504015 + ... + 650588.

It is an arithmetic number, because the mean of its divisors is an integer number (5403546720).

Almost surely, 2^84617390061 is an apocalyptic number.

It is an amenable number.

84617390061 is a deficient number, since it is larger than the sum of its proper divisors (45067731219).

84617390061 is a wasteful number, since it uses less digits than its factorization.

84617390061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155105 (or 1155102 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 84617390061 in words is "eighty-four billion, six hundred seventeen million, three hundred ninety thousand, sixty-one".