268577023553 has 4 divisors (see below), whose sum is σ = 268588907568. Its totient is φ = 268565139540.

The previous prime is 268577023541. The next prime is 268577023567. The reversal of 268577023553 is 355320775862.

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 268577023553 - 2¹⁶ = 268576958017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268577023495 and 268577023504.

It is not an unprimeable number, because it can be changed into a prime (268577023153) 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, 5908043 + ... + 5953328.

It is an arithmetic number, because the mean of its divisors is an integer number (67147226892).

Almost surely, 2^268577023553 is an apocalyptic number.

It is an amenable number.

268577023553 is a deficient number, since it is larger than the sum of its proper divisors (11884015).

268577023553 is a wasteful number, since it uses less digits than its factorization.

268577023553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11884014.

The product of its (nonzero) digits is 10584000, while the sum is 53.

The spelling of 268577023553 in words is "two hundred sixty-eight billion, five hundred seventy-seven million, twenty-three thousand, five hundred fifty-three".