489702850021 has 16 divisors (see below), whose sum is σ = 610815467520. Its totient is φ = 381413605680.

The previous prime is 489702850001. The next prime is 489702850027. The reversal of 489702850021 is 120058207984.

It is a cyclic number.

It is not a de Polignac number, because 489702850021 - 2⁷ = 489702849893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489702850027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1270881 + ... + 1610758.

It is an arithmetic number, because the mean of its divisors is an integer number (38175966720).

Almost surely, 2^489702850021 is an apocalyptic number.

It is an amenable number.

489702850021 is a deficient number, since it is larger than the sum of its proper divisors (121112617499).

489702850021 is a wasteful number, since it uses less digits than its factorization.

489702850021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883864.

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 489702850021 in words is "four hundred eighty-nine billion, seven hundred two million, eight hundred fifty thousand, twenty-one".