490737728957 has 6 divisors (see below), whose sum is σ = 570858174558. Its totient is φ = 420632339064.

The previous prime is 490737728933. The next prime is 490737728959. The reversal of 490737728957 is 759827737094.

It can be written as a sum of positive squares in only one way, i.e., 292017028996 + 198720699961 = 540386^2 + 445781^2 .

It is not a de Polignac number, because 490737728957 - 2³² = 486442761661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490737728959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5007527798 + ... + 5007527895.

It is an arithmetic number, because the mean of its divisors is an integer number (95143029093).

Almost surely, 2^490737728957 is an apocalyptic number.

It is an amenable number.

490737728957 is a deficient number, since it is larger than the sum of its proper divisors (80120445601).

490737728957 is a wasteful number, since it uses less digits than its factorization.

490737728957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10015055707 (or 10015055700 counting only the distinct ones).

The product of its (nonzero) digits is 186701760, while the sum is 68.

The spelling of 490737728957 in words is "four hundred ninety billion, seven hundred thirty-seven million, seven hundred twenty-eight thousand, nine hundred fifty-seven".