72885546641 has 16 divisors (see below), whose sum is σ = 73603954368. Its totient is φ = 72171724800.

The previous prime is 72885546637. The next prime is 72885546697. The reversal of 72885546641 is 14664558827.

It is a cyclic number.

It is not a de Polignac number, because 72885546641 - 2² = 72885546637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72885546341) 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, 46931321 + ... + 46932873.

It is an arithmetic number, because the mean of its divisors is an integer number (4600247148).

Almost surely, 2^72885546641 is an apocalyptic number.

It is an amenable number.

72885546641 is a deficient number, since it is larger than the sum of its proper divisors (718407727).

72885546641 is a wasteful number, since it uses less digits than its factorization.

72885546641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752.

The product of its digits is 12902400, while the sum is 56.

The spelling of 72885546641 in words is "seventy-two billion, eight hundred eighty-five million, five hundred forty-six thousand, six hundred forty-one".