2725618237489 has 4 divisors (see below), whose sum is σ = 3114992271424. Its totient is φ = 2336244203556.

The previous prime is 2725618237423. The next prime is 2725618237519. The reversal of 2725618237489 is 9847328165272.

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 2725618237489 - 2¹⁷ = 2725618106417 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 2725618237489.

It is not an unprimeable number, because it can be changed into a prime (2725618235489) 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, 194687016957 + ... + 194687016970.

It is an arithmetic number, because the mean of its divisors is an integer number (778748067856).

Almost surely, 2^{2725618237489} is an apocalyptic number.

It is an amenable number.

2725618237489 is a deficient number, since it is larger than the sum of its proper divisors (389374033935).

2725618237489 is an equidigital number, since it uses as much as digits as its factorization.

2725618237489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389374033934.

The product of its digits is 81285120, while the sum is 64.

The spelling of 2725618237489 in words is "two trillion, seven hundred twenty-five billion, six hundred eighteen million, two hundred thirty-seven thousand, four hundred eighty-nine".