577777661258387 has 8 divisors (see below), whose sum is σ = 586853329738896. Its totient is φ = 568715290463232.

The previous prime is 577777661258353. The next prime is 577777661258477. The reversal of 577777661258387 is 783852166777775.

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 577777661258387 - 2⁸ = 577777661258131 is a prime.

It is a super-3 number, since 3×577777661258387³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 577777661258299 and 577777661258308.

It is not an unprimeable number, because it can be changed into a prime (577777661252387) 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, 3324333758 + ... + 3324507555.

It is an arithmetic number, because the mean of its divisors is an integer number (73356666217362).

Almost surely, 2^{577777661258387} is an apocalyptic number.

577777661258387 is a deficient number, since it is larger than the sum of its proper divisors (9075668480509).

577777661258387 is a wasteful number, since it uses less digits than its factorization.

577777661258387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6648842677.

The product of its digits is 40659494400, while the sum is 86.

The spelling of 577777661258387 in words is "five hundred seventy-seven trillion, seven hundred seventy-seven billion, six hundred sixty-one million, two hundred fifty-eight thousand, three hundred eighty-seven".