72842066624621 has 16 divisors (see below), whose sum is σ = 86216229340800. Its totient is φ = 60214818702528.

The previous prime is 72842066624611. The next prime is 72842066624647. The reversal of 72842066624621 is 12642666024827.

It is not a de Polignac number, because 72842066624621 - 2¹⁴ = 72842066608237 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 (72842066624611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203007566 + ... + 203366063.

It is an arithmetic number, because the mean of its divisors is an integer number (5388514333800).

Almost surely, 2^{72842066624621} is an apocalyptic number.

It is an amenable number.

72842066624621 is a deficient number, since it is larger than the sum of its proper divisors (13374162716179).

72842066624621 is a wasteful number, since it uses less digits than its factorization.

72842066624621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406374548.

The product of its (nonzero) digits is 18579456, while the sum is 56.

The spelling of 72842066624621 in words is "seventy-two trillion, eight hundred forty-two billion, sixty-six million, six hundred twenty-four thousand, six hundred twenty-one".