72876030728921 has 8 divisors (see below), whose sum is σ = 85537889350080. Its totient is φ = 60776921379888.

The previous prime is 72876030728869. The next prime is 72876030728953. The reversal of 72876030728921 is 12982703067827.

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

It is not a de Polignac number, because 72876030728921 - 2²² = 72876026534617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72876030728971) 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, 140687317751 + ... + 140687318268.

It is an arithmetic number, because the mean of its divisors is an integer number (10692236168760).

Almost surely, 2^{72876030728921} is an apocalyptic number.

It is an amenable number.

72876030728921 is a deficient number, since it is larger than the sum of its proper divisors (12661858621159).

72876030728921 is a wasteful number, since it uses less digits than its factorization.

72876030728921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281374636063.

The product of its (nonzero) digits is 28449792, while the sum is 62.

The spelling of 72876030728921 in words is "seventy-two trillion, eight hundred seventy-six billion, thirty million, seven hundred twenty-eight thousand, nine hundred twenty-one".