67529742342 has 16 divisors (see below), whose sum is σ = 140931636480. Its totient is φ = 21531222152.

The previous prime is 67529742323. The next prime is 67529742347. The reversal of 67529742342 is 24324792576.

It is a happy number.

It is a super-2 number, since 2×67529742342² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67529742347) 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, 244672842 + ... + 244673117.

It is an arithmetic number, because the mean of its divisors is an integer number (8808227280).

Almost surely, 2^67529742342 is an apocalyptic number.

67529742342 is an abundant number, since it is smaller than the sum of its proper divisors (73401894138).

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

67529742342 is a wasteful number, since it uses less digits than its factorization.

67529742342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489345987.

The product of its digits is 5080320, while the sum is 51.

The spelling of 67529742342 in words is "sixty-seven billion, five hundred twenty-nine million, seven hundred forty-two thousand, three hundred forty-two".