68280478763858 has 32 divisors (see below), whose sum is σ = 104606171926272. Its totient is φ = 33419164564800.

The previous prime is 68280478763843. The next prime is 68280478763879. The reversal of 68280478763858 is 85836787408286.

It is a super-3 number, since 3×68280478763858³ (a number of 42 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16110923 + ... + 19902833.

It is an arithmetic number, because the mean of its divisors is an integer number (3268942872696).

Almost surely, 2^{68280478763858} is an apocalyptic number.

68280478763858 is a deficient number, since it is larger than the sum of its proper divisors (36325693162414).

68280478763858 is a wasteful number, since it uses less digits than its factorization.

68280478763858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792890.

The product of its (nonzero) digits is 6936330240, while the sum is 80.

The spelling of 68280478763858 in words is "sixty-eight trillion, two hundred eighty billion, four hundred seventy-eight million, seven hundred sixty-three thousand, eight hundred fifty-eight".