2571889961 has 8 divisors (see below), whose sum is σ = 2631795840. Its totient is φ = 2512200208.

The previous prime is 2571889949. The next prime is 2571889979. The reversal of 2571889961 is 1699881752.

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 2571889961 - 2¹⁰ = 2571888937 is a prime.

It is a super-2 number, since 2×2571889961² = 13229235942985163042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2571889897 and 2571889906.

It is not an unprimeable number, because it can be changed into a prime (2571889261) 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 7 ways as a sum of consecutive naturals, for example, 29831 + ... + 77676.

It is an arithmetic number, because the mean of its divisors is an integer number (328974480).

Almost surely, 2^2571889961 is an apocalyptic number.

It is an amenable number.

2571889961 is a deficient number, since it is larger than the sum of its proper divisors (59905879).

2571889961 is a wasteful number, since it uses less digits than its factorization.

2571889961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108063.

The product of its digits is 2177280, while the sum is 56.

The square root of 2571889961 is about 50713.8044421832. The cubic root of 2571889961 is about 1370.0953564615.

The spelling of 2571889961 in words is "two billion, five hundred seventy-one million, eight hundred eighty-nine thousand, nine hundred sixty-one".