505017044890 has 16 divisors (see below), whose sum is σ = 909057813408. Its totient is φ = 202000788496.

The previous prime is 505017044863. The next prime is 505017044893. The reversal of 505017044890 is 98440710505.

It is a super-2 number, since 2×505017044890² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (505017044893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393712 + ... + 1079371.

It is an arithmetic number, because the mean of its divisors is an integer number (56816113338).

Almost surely, 2^505017044890 is an apocalyptic number.

505017044890 is a deficient number, since it is larger than the sum of its proper divisors (404040768518).

505017044890 is a wasteful number, since it uses less digits than its factorization.

505017044890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507373.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 505017044890 in words is "five hundred five billion, seventeen million, forty-four thousand, eight hundred ninety".