876561882401 has 4 divisors (see below), whose sum is σ = 876577984512. Its totient is φ = 876545780292.

The previous prime is 876561882397. The next prime is 876561882409. The reversal of 876561882401 is 104288165678.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 876561882401 - 2² = 876561882397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (876561882409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7969121 + ... + 8078366.

It is an arithmetic number, because the mean of its divisors is an integer number (219144496128).

Almost surely, 2^876561882401 is an apocalyptic number.

It is an amenable number.

876561882401 is a deficient number, since it is larger than the sum of its proper divisors (16102111).

876561882401 is a wasteful number, since it uses less digits than its factorization.

876561882401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16102110.

The product of its (nonzero) digits is 5160960, while the sum is 56.

The spelling of 876561882401 in words is "eight hundred seventy-six billion, five hundred sixty-one million, eight hundred eighty-two thousand, four hundred one".