72385633261 has 8 divisors (see below), whose sum is σ = 72512552448. Its totient is φ = 72258810000.

The previous prime is 72385633247. The next prime is 72385633267. The reversal of 72385633261 is 16233658327.

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 72385633261 - 2¹³ = 72385625069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72385633267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1579176 + ... + 1624366.

It is an arithmetic number, because the mean of its divisors is an integer number (9064069056).

Almost surely, 2^72385633261 is an apocalyptic number.

It is an amenable number.

72385633261 is a deficient number, since it is larger than the sum of its proper divisors (126919187).

72385633261 is a wasteful number, since it uses less digits than its factorization.

72385633261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47963.

The product of its digits is 1088640, while the sum is 46.

The spelling of 72385633261 in words is "seventy-two billion, three hundred eighty-five million, six hundred thirty-three thousand, two hundred sixty-one".