67617434023 has 16 divisors (see below), whose sum is σ = 76966571520. Its totient is φ = 59007678336.

The previous prime is 67617434021. The next prime is 67617434041. The reversal of 67617434023 is 32043471676.

It is a cyclic number.

It is not a de Polignac number, because 67617434023 - 2¹ = 67617434021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67617434021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2211861 + ... + 2242222.

It is an arithmetic number, because the mean of its divisors is an integer number (4810410720).

Almost surely, 2^67617434023 is an apocalyptic number.

67617434023 is a deficient number, since it is larger than the sum of its proper divisors (9349137497).

67617434023 is a wasteful number, since it uses less digits than its factorization.

67617434023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4454166.

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 67617434023 in words is "sixty-seven billion, six hundred seventeen million, four hundred thirty-four thousand, twenty-three".