2517149287391 has 8 divisors (see below), whose sum is σ = 2533643484240. Its totient is φ = 2500690678272.

The previous prime is 2517149287327. The next prime is 2517149287409. The reversal of 2517149287391 is 1937829417152.

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 2517149287391 - 2⁶ = 2517149287327 is a prime.

It is a super-2 number, since 2×2517149287391² (a number of 26 digits) contains 22 as substring.

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 2517149287391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2517149280391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8755001 + ... + 9037938.

It is an arithmetic number, because the mean of its divisors is an integer number (316705435530).

Almost surely, 2^{2517149287391} is an apocalyptic number.

2517149287391 is a deficient number, since it is larger than the sum of its proper divisors (16494196849).

2517149287391 is a wasteful number, since it uses less digits than its factorization.

2517149287391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17793865.

The product of its digits is 7620480, while the sum is 59.

The spelling of 2517149287391 in words is "two trillion, five hundred seventeen billion, one hundred forty-nine million, two hundred eighty-seven thousand, three hundred ninety-one".