67712831982 has 32 divisors (see below), whose sum is σ = 150590396160. Its totient is φ = 22553328600.

The previous prime is 67712831981. The next prime is 67712831983. The reversal of 67712831982 is 28913821776.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (67712831981) and next prime (67712831983).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67712831981) 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, 419394 + ... + 557957.

It is an arithmetic number, because the mean of its divisors is an integer number (4705949880).

Almost surely, 2^67712831982 is an apocalyptic number.

67712831982 is an abundant number, since it is smaller than the sum of its proper divisors (82877564178).

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

67712831982 is a wasteful number, since it uses less digits than its factorization.

67712831982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978645 (or 978639 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The spelling of 67712831982 in words is "sixty-seven billion, seven hundred twelve million, eight hundred thirty-one thousand, nine hundred eighty-two".