464815023857 has 4 divisors (see below), whose sum is σ = 465461498880. Its totient is φ = 464168548836.

The previous prime is 464815023851. The next prime is 464815023877. The reversal of 464815023857 is 758320518464.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 464815023857 - 2²⁰ = 464813975281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 464815023799 and 464815023808.

It is not an unprimeable number, because it can be changed into a prime (464815023851) 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 3 ways as a sum of consecutive naturals, for example, 323236433 + ... + 323237870.

It is an arithmetic number, because the mean of its divisors is an integer number (116365374720).

Almost surely, 2^464815023857 is an apocalyptic number.

It is an amenable number.

464815023857 is a deficient number, since it is larger than the sum of its proper divisors (646475023).

464815023857 is an equidigital number, since it uses as much as digits as its factorization.

464815023857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646475022.

The product of its (nonzero) digits is 6451200, while the sum is 53.

The spelling of 464815023857 in words is "four hundred sixty-four billion, eight hundred fifteen million, twenty-three thousand, eight hundred fifty-seven".