2487648791 has 4 divisors (see below), whose sum is σ = 2488775112. Its totient is φ = 2486522472.

The previous prime is 2487648773. The next prime is 2487648799. The reversal of 2487648791 is 1978467842.

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

It is a cyclic number.

It is not a de Polignac number, because 2487648791 - 2⁶ = 2487648727 is a prime.

It is a super-3 number, since 3×2487648791³ (a number of 29 digits) contains 333 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 (2487648799) 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, 559841 + ... + 564266.

It is an arithmetic number, because the mean of its divisors is an integer number (622193778).

Almost surely, 2^2487648791 is an apocalyptic number.

2487648791 is a deficient number, since it is larger than the sum of its proper divisors (1126321).

2487648791 is a wasteful number, since it uses less digits than its factorization.

2487648791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126320.

The product of its digits is 5419008, while the sum is 56.

The square root of 2487648791 is about 49876.3349796274. The cubic root of 2487648791 is about 1354.9700280676.

The spelling of 2487648791 in words is "two billion, four hundred eighty-seven million, six hundred forty-eight thousand, seven hundred ninety-one".