48876808561 has 9 divisors (see below), whose sum is σ = 56858495961. Its totient is φ = 41893080852.

The previous prime is 48876808553. The next prime is 48876808621. The reversal of 48876808561 is 16580867884.

The square root of 48876808561 is 221081.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 48876808561 - 2³ = 48876808553 is a prime.

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 48876808561.

It is not an unprimeable number, because it can be changed into a prime (48876808061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1531776 + ... + 1563358.

Almost surely, 2^48876808561 is an apocalyptic number.

48876808561 is the 221081-st square number.

48876808561 is the 110541-st centered octagonal number.

It is an amenable number.

48876808561 is a deficient number, since it is larger than the sum of its proper divisors (7981687400).

48876808561 is an frugal number, since it uses more digits than its factorization.

48876808561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63180 (or 31590 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 61.

The spelling of 48876808561 in words is "forty-eight billion, eight hundred seventy-six million, eight hundred eight thousand, five hundred sixty-one".