490999631071 has 4 divisors (see below), whose sum is σ = 491001152544. Its totient is φ = 490998109600.

The previous prime is 490999631041. The next prime is 490999631117. The reversal of 490999631071 is 170136999094.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 490999631071 - 2⁹ = 490999630559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 490999630997 and 490999631015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490999631041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63895 + ... + 993016.

It is an arithmetic number, because the mean of its divisors is an integer number (122750288136).

Almost surely, 2^490999631071 is an apocalyptic number.

490999631071 is a deficient number, since it is larger than the sum of its proper divisors (1521473).

490999631071 is a wasteful number, since it uses less digits than its factorization.

490999631071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521472.

The product of its (nonzero) digits is 3306744, while the sum is 58.

The spelling of 490999631071 in words is "four hundred ninety billion, nine hundred ninety-nine million, six hundred thirty-one thousand, seventy-one".