492117878 has 48 divisors (see below), whose sum is σ = 892600800. Its totient is φ = 203396256.

The previous prime is 492117863. The next prime is 492117889. The reversal of 492117878 is 878711294.

It is a happy number.

It is a super-3 number, since 3×492117878³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 576500 + ... + 577352.

It is an arithmetic number, because the mean of its divisors is an integer number (18595850).

Almost surely, 2^492117878 is an apocalyptic number.

492117878 is a deficient number, since it is larger than the sum of its proper divisors (400482922).

492117878 is an equidigital number, since it uses as much as digits as its factorization.

492117878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 891 counting only the distinct ones).

The product of its digits is 225792, while the sum is 47.

The square root of 492117878 is about 22183.7300290100. The cubic root of 492117878 is about 789.5077197960.

The spelling of 492117878 in words is "four hundred ninety-two million, one hundred seventeen thousand, eight hundred seventy-eight".