47921902018579 has 8 divisors (see below), whose sum is σ = 50013092741760. Its totient is φ = 45859958718336.

The previous prime is 47921902018531. The next prime is 47921902018597. The reversal of 47921902018579 is 97581020912974.

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 47921902018579 - 2⁷ = 47921902018451 is a prime.

It is a super-2 number, since 2×47921902018579² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47921902018579.

It is not an unprimeable number, because it can be changed into a prime (47921902018279) 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, 7311852387 + ... + 7311858940.

It is an arithmetic number, because the mean of its divisors is an integer number (6251636592720).

Almost surely, 2^{47921902018579} is an apocalyptic number.

47921902018579 is a deficient number, since it is larger than the sum of its proper divisors (2091190723181).

47921902018579 is a wasteful number, since it uses less digits than its factorization.

47921902018579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14623711469.

The product of its (nonzero) digits is 22861440, while the sum is 64.

The spelling of 47921902018579 in words is "forty-seven trillion, nine hundred twenty-one billion, nine hundred two million, eighteen thousand, five hundred seventy-nine".