268163750978480 has 40 divisors (see below), whose sum is σ = 712549395458592. Its totient is φ = 91941857478144.

The previous prime is 268163750978477. The next prime is 268163750978537. The reversal of 268163750978480 is 84879057361862.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×268163750978480² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 268163750978398 and 268163750978407.

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, 239431919957 + ... + 239431921076.

It is a 1-persistent number, because it is pandigital, but 2⋅268163750978480 = 536327501956960 is not.

Almost surely, 2^{268163750978480} is an apocalyptic number.

268163750978480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268163750978480 is an abundant number, since it is smaller than the sum of its proper divisors (444385644480112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268163750978480 is a wasteful number, since it uses less digits than its factorization.

268163750978480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478863841053 (or 478863841047 counting only the distinct ones).

The product of its (nonzero) digits is 975421440, while the sum is 74.

The spelling of 268163750978480 in words is "two hundred sixty-eight trillion, one hundred sixty-three billion, seven hundred fifty million, nine hundred seventy-eight thousand, four hundred eighty".