72122647541 has 8 divisors (see below), whose sum is σ = 82510778304. Its totient is φ = 61755740640.

The previous prime is 72122647501. The next prime is 72122647559. The reversal of 72122647541 is 14574622127.

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 72122647541 - 2¹⁸ = 72122385397 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 (72122647501) 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, 5298680 + ... + 5312273.

It is an arithmetic number, because the mean of its divisors is an integer number (10313847288).

Almost surely, 2^72122647541 is an apocalyptic number.

It is an amenable number.

72122647541 is a deficient number, since it is larger than the sum of its proper divisors (10388130763).

72122647541 is a wasteful number, since it uses less digits than its factorization.

72122647541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10611931.

The product of its digits is 188160, while the sum is 41.

The spelling of 72122647541 in words is "seventy-two billion, one hundred twenty-two million, six hundred forty-seven thousand, five hundred forty-one".