490974551971 has 8 divisors (see below), whose sum is σ = 491844156944. Its totient is φ = 490105123200.

The previous prime is 490974551957. The next prime is 490974551981. The reversal of 490974551971 is 179155479094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 490974551971 - 2⁵ = 490974551939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490974551941) 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, 6348391 + ... + 6425263.

It is an arithmetic number, because the mean of its divisors is an integer number (61480519618).

Almost surely, 2^490974551971 is an apocalyptic number.

490974551971 is a deficient number, since it is larger than the sum of its proper divisors (869604973).

490974551971 is a wasteful number, since it uses less digits than its factorization.

490974551971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88101.

The product of its (nonzero) digits is 14288400, while the sum is 61.

The spelling of 490974551971 in words is "four hundred ninety billion, nine hundred seventy-four million, five hundred fifty-one thousand, nine hundred seventy-one".