481821961420799 has 4 divisors (see below), whose sum is σ = 481931541129864. Its totient is φ = 481712381711736.

The previous prime is 481821961420783. The next prime is 481821961420853. The reversal of 481821961420799 is 997024169128184.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 481821961420799 - 2⁴ = 481821961420783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481821964420799) 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, 54789847937 + ... + 54789856730.

It is an arithmetic number, because the mean of its divisors is an integer number (120482885282466).

Almost surely, 2^{481821961420799} is an apocalyptic number.

481821961420799 is a deficient number, since it is larger than the sum of its proper divisors (109579709065).

481821961420799 is a wasteful number, since it uses less digits than its factorization.

481821961420799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109579709064.

The product of its (nonzero) digits is 125411328, while the sum is 71.

The spelling of 481821961420799 in words is "four hundred eighty-one trillion, eight hundred twenty-one billion, nine hundred sixty-one million, four hundred twenty thousand, seven hundred ninety-nine".