491462373888 has 320 divisors, whose sum is σ = 1493566905600. Its totient is φ = 159469240320.

The previous prime is 491462373881. The next prime is 491462373911. The reversal of 491462373888 is 888373264194.

491462373888 is a `hidden beast` number, since 4 + 9 + 14 + 6 + 237 + 388 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (491462373881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401849245 + ... + 401850467.

It is an arithmetic number, because the mean of its divisors is an integer number (4667396580).

Almost surely, 2^491462373888 is an apocalyptic number.

491462373888 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491462373888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (746783452800).

491462373888 is an abundant number, since it is smaller than the sum of its proper divisors (1002104531712).

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

491462373888 is a wasteful number, since it uses less digits than its factorization.

491462373888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000 (or 1978 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 491462373888 in words is "four hundred ninety-one billion, four hundred sixty-two million, three hundred seventy-three thousand, eight hundred eighty-eight".