492557979339 has 6 divisors (see below), whose sum is σ = 711472636836. Its totient is φ = 328371986220.

The previous prime is 492557979313. The next prime is 492557979409. The reversal of 492557979339 is 933979755294.

492557979339 is a `hidden beast` number, since 49 + 2 + 5 + 579 + 7 + 9 + 3 + 3 + 9 = 666.

It is not a de Polignac number, because 492557979339 - 2¹¹ = 492557977291 is a prime.

It is a super-2 number, since 2×492557979339² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (492557979239) 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, 27364332177 + ... + 27364332194.

It is an arithmetic number, because the mean of its divisors is an integer number (118578772806).

Almost surely, 2^492557979339 is an apocalyptic number.

492557979339 is a deficient number, since it is larger than the sum of its proper divisors (218914657497).

492557979339 is a wasteful number, since it uses less digits than its factorization.

492557979339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54728664377 (or 54728664374 counting only the distinct ones).

The product of its digits is 578680200, while the sum is 72.

The spelling of 492557979339 in words is "four hundred ninety-two billion, five hundred fifty-seven million, nine hundred seventy-nine thousand, three hundred thirty-nine".