481972239491 has 16 divisors (see below), whose sum is σ = 496100432064. Its totient is φ = 467903205504.

The previous prime is 481972239461. The next prime is 481972239499. The reversal of 481972239491 is 194932279184.

It is a cyclic number.

It is not a de Polignac number, because 481972239491 - 2¹⁰ = 481972238467 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 481972239491.

It is not an unprimeable number, because it can be changed into a prime (481972239499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33999281 + ... + 34013453.

It is an arithmetic number, because the mean of its divisors is an integer number (31006277004).

Almost surely, 2^481972239491 is an apocalyptic number.

481972239491 is a deficient number, since it is larger than the sum of its proper divisors (14128192573).

481972239491 is a wasteful number, since it uses less digits than its factorization.

481972239491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16190.

The product of its digits is 7838208, while the sum is 59.

The spelling of 481972239491 in words is "four hundred eighty-one billion, nine hundred seventy-two million, two hundred thirty-nine thousand, four hundred ninety-one".