494621388260031 has 16 divisors (see below), whose sum is σ = 660358592691200. Its totient is φ = 329316107878368.

The previous prime is 494621388259979. The next prime is 494621388260057. The reversal of 494621388260031 is 130062883126494.

It is not a de Polignac number, because 494621388260031 - 2⁶ = 494621388259967 is a prime.

It is a super-2 number, since 2×494621388260031² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494621386260031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18483916 + ... + 36481473.

It is an arithmetic number, because the mean of its divisors is an integer number (41272412043200).

Almost surely, 2^{494621388260031} is an apocalyptic number.

494621388260031 is a deficient number, since it is larger than the sum of its proper divisors (165737204431169).

494621388260031 is a wasteful number, since it uses less digits than its factorization.

494621388260031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54969318.

The product of its (nonzero) digits is 11943936, while the sum is 57.

The spelling of 494621388260031 in words is "four hundred ninety-four trillion, six hundred twenty-one billion, three hundred eighty-eight million, two hundred sixty thousand, thirty-one".