775381548479 has 8 divisors (see below), whose sum is σ = 796354696368. Its totient is φ = 754409289600.

The previous prime is 775381548449. The next prime is 775381548481. The reversal of 775381548479 is 974845183577.

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

It is a cyclic number.

It is not a de Polignac number, because 775381548479 - 2¹² = 775381544383 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 (775381548449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1788404 + ... + 2179254.

It is an arithmetic number, because the mean of its divisors is an integer number (99544337046).

Almost surely, 2^775381548479 is an apocalyptic number.

775381548479 is a deficient number, since it is larger than the sum of its proper divisors (20973147889).

775381548479 is a wasteful number, since it uses less digits than its factorization.

775381548479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444505.

The product of its digits is 237081600, while the sum is 68.

The spelling of 775381548479 in words is "seven hundred seventy-five billion, three hundred eighty-one million, five hundred forty-eight thousand, four hundred seventy-nine".