492978317320 has 16 divisors (see below), whose sum is σ = 1109201214060. Its totient is φ = 197191326912.

The previous prime is 492978317281. The next prime is 492978317327. The reversal of 492978317320 is 23713879294.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 474867079236 + 18111238084 = 689106^2 + 134578^2 .

It is a super-2 number, since 2×492978317320² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (492978317327) 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, 6162228927 + ... + 6162229006.

Almost surely, 2^492978317320 is an apocalyptic number.

492978317320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

492978317320 is an abundant number, since it is smaller than the sum of its proper divisors (616222896740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

492978317320 is a wasteful number, since it uses less digits than its factorization.

492978317320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12324457944 (or 12324457940 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 492978317320 in words is "four hundred ninety-two billion, nine hundred seventy-eight million, three hundred seventeen thousand, three hundred twenty".