4791261502487 has 4 divisors (see below), whose sum is σ = 5073100414416. Its totient is φ = 4509422590560.

The previous prime is 4791261502459. The next prime is 4791261502493. The reversal of 4791261502487 is 7842051621974.

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-4791261502487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4791261502457) 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, 140919455939 + ... + 140919455972.

It is an arithmetic number, because the mean of its divisors is an integer number (1268275103604).

Almost surely, 2^{4791261502487} is an apocalyptic number.

4791261502487 is a deficient number, since it is larger than the sum of its proper divisors (281838911929).

4791261502487 is a wasteful number, since it uses less digits than its factorization.

4791261502487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281838911928.

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 4791261502487 in words is "four trillion, seven hundred ninety-one billion, two hundred sixty-one million, five hundred two thousand, four hundred eighty-seven".