72985155829 has 8 divisors (see below), whose sum is σ = 77046620000. Its totient is φ = 68945705712.

The previous prime is 72985155821. The next prime is 72985155883. The reversal of 72985155829 is 92855158927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72985155829 - 2³ = 72985155821 is a prime.

It is a super-4 number, since 4×72985155829⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72985155821) 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, 5496699 + ... + 5509960.

It is an arithmetic number, because the mean of its divisors is an integer number (9630827500).

Almost surely, 2^72985155829 is an apocalyptic number.

It is an amenable number.

72985155829 is a deficient number, since it is larger than the sum of its proper divisors (4061464171).

72985155829 is a wasteful number, since it uses less digits than its factorization.

72985155829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11007027.

The product of its digits is 18144000, while the sum is 61.

The spelling of 72985155829 in words is "seventy-two billion, nine hundred eighty-five million, one hundred fifty-five thousand, eight hundred twenty-nine".