67697429652 has 72 divisors (see below), whose sum is σ = 172753380800. Its totient is φ = 22351707648.

The previous prime is 67697429641. The next prime is 67697429659. The reversal of 67697429652 is 25692479676.

67697429652 is a `hidden beast` number, since 6 + 76 + 97 + 429 + 6 + 52 = 666.

It is a super-2 number, since 2×67697429652² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67697429652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67697429659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2181348 + ... + 2212164.

Almost surely, 2^67697429652 is an apocalyptic number.

It is an amenable number.

67697429652 is an abundant number, since it is smaller than the sum of its proper divisors (105055951148).

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

67697429652 is a wasteful number, since it uses less digits than its factorization.

67697429652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31405 (or 31400 counting only the distinct ones).

The product of its digits is 68584320, while the sum is 63.

The spelling of 67697429652 in words is "sixty-seven billion, six hundred ninety-seven million, four hundred twenty-nine thousand, six hundred fifty-two".