67252812426 has 12 divisors (see below), whose sum is σ = 145714426962. Its totient is φ = 22417604136.

The previous prime is 67252812401. The next prime is 67252812427. The reversal of 67252812426 is 62421825276.

67252812426 is a `hidden beast` number, since 6 + 72 + 528 + 12 + 42 + 6 = 666.

67252812426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 50469869025 + 16782943401 = 224655^2 + 129549^2 .

It is not an unprimeable number, because it can be changed into a prime (67252812427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1868133661 + ... + 1868133696.

Almost surely, 2^67252812426 is an apocalyptic number.

67252812426 is an abundant number, since it is smaller than the sum of its proper divisors (78461614536).

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

67252812426 is a wasteful number, since it uses less digits than its factorization.

67252812426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736267365 (or 3736267362 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The spelling of 67252812426 in words is "sixty-seven billion, two hundred fifty-two million, eight hundred twelve thousand, four hundred twenty-six".