617990370354 has 192 divisors, whose sum is σ = 1692820546560. Its totient is φ = 158968656000.

The previous prime is 617990370341. The next prime is 617990370479. The reversal of 617990370354 is 453073099716.

It is a happy number.

617990370354 is a `hidden beast` number, since 6 + 179 + 90 + 37 + 0 + 354 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 617990370354.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3727729 + ... + 3889979.

It is an arithmetic number, because the mean of its divisors is an integer number (8816773680).

Almost surely, 2^617990370354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 617990370354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846410273280).

617990370354 is an abundant number, since it is smaller than the sum of its proper divisors (1074830176206).

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

617990370354 is a wasteful number, since it uses less digits than its factorization.

617990370354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162365 (or 162362 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The spelling of 617990370354 in words is "six hundred seventeen billion, nine hundred ninety million, three hundred seventy thousand, three hundred fifty-four".