512820377465 has 8 divisors (see below), whose sum is σ = 671328494208. Its totient is φ = 372960274480.

The previous prime is 512820377449. The next prime is 512820377483. The reversal of 512820377465 is 564773028215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 512820377465 - 2⁴ = 512820377449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4662003377 + ... + 4662003486.

It is an arithmetic number, because the mean of its divisors is an integer number (83916061776).

Almost surely, 2^512820377465 is an apocalyptic number.

512820377465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

512820377465 is a deficient number, since it is larger than the sum of its proper divisors (158508116743).

512820377465 is a wasteful number, since it uses less digits than its factorization.

512820377465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324006879.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 512820377465 in words is "five hundred twelve billion, eight hundred twenty million, three hundred seventy-seven thousand, four hundred sixty-five".