67031612057 has 8 divisors (see below), whose sum is σ = 68595653280. Its totient is φ = 65467805760.

The previous prime is 67031612023. The next prime is 67031612093. The reversal of 67031612057 is 75021613076.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67031612057 - 2²⁴ = 67014834841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67031612057.

It is not an unprimeable number, because it can be changed into a prime (67031612257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605057 + ... + 707217.

It is an arithmetic number, because the mean of its divisors is an integer number (8574456660).

Almost surely, 2^67031612057 is an apocalyptic number.

It is an amenable number.

67031612057 is a deficient number, since it is larger than the sum of its proper divisors (1564041223).

67031612057 is a wasteful number, since it uses less digits than its factorization.

67031612057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117463.

The product of its (nonzero) digits is 52920, while the sum is 38.

The spelling of 67031612057 in words is "sixty-seven billion, thirty-one million, six hundred twelve thousand, fifty-seven".