2517721989119 has 4 divisors (see below), whose sum is σ = 2517746655000. Its totient is φ = 2517697323240.

The previous prime is 2517721989091. The next prime is 2517721989131. The reversal of 2517721989119 is 9119891277152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2517721989119 is a prime.

It is a super-2 number, since 2×2517721989119² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2517721989149) 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, 12179192 + ... + 12384189.

It is an arithmetic number, because the mean of its divisors is an integer number (629436663750).

Almost surely, 2^{2517721989119} is an apocalyptic number.

2517721989119 is a deficient number, since it is larger than the sum of its proper divisors (24665881).

2517721989119 is a wasteful number, since it uses less digits than its factorization.

2517721989119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24665880.

The product of its digits is 5715360, while the sum is 62.

The spelling of 2517721989119 in words is "two trillion, five hundred seventeen billion, seven hundred twenty-one million, nine hundred eighty-nine thousand, one hundred nineteen".