2873744625561 has 4 divisors (see below), whose sum is σ = 3831659500752. Its totient is φ = 1915829750372.

The previous prime is 2873744625553. The next prime is 2873744625601. The reversal of 2873744625561 is 1655264473782.

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 2873744625561 - 2³ = 2873744625553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2873744625495 and 2873744625504.

It is not an unprimeable number, because it can be changed into a prime (2873744625061) 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, 478957437591 + ... + 478957437596.

It is an arithmetic number, because the mean of its divisors is an integer number (957914875188).

Almost surely, 2^{2873744625561} is an apocalyptic number.

It is an amenable number.

2873744625561 is a deficient number, since it is larger than the sum of its proper divisors (957914875191).

2873744625561 is an equidigital number, since it uses as much as digits as its factorization.

2873744625561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957914875190.

The product of its digits is 67737600, while the sum is 60.

The spelling of 2873744625561 in words is "two trillion, eight hundred seventy-three billion, seven hundred forty-four million, six hundred twenty-five thousand, five hundred sixty-one".