67871617662 has 16 divisors (see below), whose sum is σ = 135781418880. Its totient is φ = 22617508632.

The previous prime is 67871617643. The next prime is 67871617663. The reversal of 67871617662 is 26671617876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67871617663) 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, 1567848 + ... + 1610555.

It is an arithmetic number, because the mean of its divisors is an integer number (8486338680).

Almost surely, 2^67871617662 is an apocalyptic number.

67871617662 is an abundant number, since it is smaller than the sum of its proper divisors (67909801218).

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

67871617662 is a wasteful number, since it uses less digits than its factorization.

67871617662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181967.

The product of its digits is 7112448, while the sum is 57.

The spelling of 67871617662 in words is "sixty-seven billion, eight hundred seventy-one million, six hundred seventeen thousand, six hundred sixty-two".