491457068334 has 40 divisors (see below), whose sum is σ = 1114495711560. Its totient is φ = 161845295184.

The previous prime is 491457068299. The next prime is 491457068351. The reversal of 491457068334 is 433860754194.

491457068334 is a `hidden beast` number, since 4 + 9 + 1 + 4 + 570 + 68 + 3 + 3 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18261769 + ... + 18288660.

It is an arithmetic number, because the mean of its divisors is an integer number (27862392789).

Almost surely, 2^491457068334 is an apocalyptic number.

491457068334 is an abundant number, since it is smaller than the sum of its proper divisors (623038643226).

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

491457068334 is a wasteful number, since it uses less digits than its factorization.

491457068334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36550526 (or 36550517 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 491457068334 in words is "four hundred ninety-one billion, four hundred fifty-seven million, sixty-eight thousand, three hundred thirty-four".