68481420626 has 16 divisors (see below), whose sum is σ = 104263810200. Its totient is φ = 33730449408.

The previous prime is 68481420589. The next prime is 68481420691. The reversal of 68481420626 is 62602418486.

It can be written as a sum of positive squares in 4 ways, for example, as 66409805401 + 2071615225 = 257701^2 + 45515^2 .

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, 870191 + ... + 945618.

Almost surely, 2^68481420626 is an apocalyptic number.

68481420626 is a deficient number, since it is larger than the sum of its proper divisors (35782389574).

68481420626 is a wasteful number, since it uses less digits than its factorization.

68481420626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816093.

The product of its (nonzero) digits is 884736, while the sum is 47.

The spelling of 68481420626 in words is "sixty-eight billion, four hundred eighty-one million, four hundred twenty thousand, six hundred twenty-six".