4644556403450 has 12 divisors (see below), whose sum is σ = 8638874910510. Its totient is φ = 1857822561360.

The previous prime is 4644556403419. The next prime is 4644556403467. The reversal of 4644556403450 is 543046554464.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3984027976009 + 660528427441 = 1996003^2 + 812729^2 .

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 92891128069 = 4644556403450 / (4 + 6 + 4 + 4 + 5 + 5 + 6 + 4 + 0 + 3 + 4 + 5 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46445563985 + ... + 46445564084.

Almost surely, 2^{4644556403450} is an apocalyptic number.

4644556403450 is a deficient number, since it is larger than the sum of its proper divisors (3994318507060).

4644556403450 is a wasteful number, since it uses less digits than its factorization.

4644556403450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92891128081 (or 92891128076 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 50.

The spelling of 4644556403450 in words is "four trillion, six hundred forty-four billion, five hundred fifty-six million, four hundred three thousand, four hundred fifty".