729598471992 has 96 divisors (see below), whose sum is σ = 2253171800880. Its totient is φ = 211286430720.

The previous prime is 729598471981. The next prime is 729598471993. The reversal of 729598471992 is 299174895927.

It is a happy number.

729598471992 is a `hidden beast` number, since 7 + 29 + 598 + 4 + 7 + 1 + 9 + 9 + 2 = 666.

It is a super-2 number, since 2×729598471992² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 729598471992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729598471993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22910134 + ... + 22941957.

Almost surely, 2^729598471992 is an apocalyptic number.

729598471992 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

729598471992 is an abundant number, since it is smaller than the sum of its proper divisors (1523573328888).

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

729598471992 is a wasteful number, since it uses less digits than its factorization.

729598471992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45852133 (or 45852126 counting only the distinct ones).

The product of its digits is 205752960, while the sum is 72.

The spelling of 729598471992 in words is "seven hundred twenty-nine billion, five hundred ninety-eight million, four hundred seventy-one thousand, nine hundred ninety-two".