5291750869781 has 4 divisors (see below), whose sum is σ = 5291886514752. Its totient is φ = 5291615224812.

The previous prime is 5291750869771. The next prime is 5291750869817. The reversal of 5291750869781 is 1879680571925.

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 a de Polignac number, because none of the positive numbers 2^k-5291750869781 is a prime.

It is a super-2 number, since 2×5291750869781² (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 (5291750869771) 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 3 ways as a sum of consecutive naturals, for example, 67763951 + ... + 67841996.

It is an arithmetic number, because the mean of its divisors is an integer number (1322971628688).

Almost surely, 2^{5291750869781} is an apocalyptic number.

It is an amenable number.

5291750869781 is a deficient number, since it is larger than the sum of its proper divisors (135644971).

5291750869781 is a wasteful number, since it uses less digits than its factorization.

5291750869781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135644970.

The product of its (nonzero) digits is 76204800, while the sum is 68.

The spelling of 5291750869781 in words is "five trillion, two hundred ninety-one billion, seven hundred fifty million, eight hundred sixty-nine thousand, seven hundred eighty-one".