5261954069789 has 4 divisors (see below), whose sum is σ = 5302121658240. Its totient is φ = 5221786481340.

The previous prime is 5261954069717. The next prime is 5261954069809. The reversal of 5261954069789 is 9879604591625.

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-5261954069789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5261954069389) 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, 20083794029 + ... + 20083794290.

It is an arithmetic number, because the mean of its divisors is an integer number (1325530414560).

Almost surely, 2^{5261954069789} is an apocalyptic number.

It is an amenable number.

5261954069789 is a deficient number, since it is larger than the sum of its proper divisors (40167588451).

5261954069789 is a wasteful number, since it uses less digits than its factorization.

5261954069789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40167588450.

The product of its (nonzero) digits is 293932800, while the sum is 71.

The spelling of 5261954069789 in words is "five trillion, two hundred sixty-one billion, nine hundred fifty-four million, sixty-nine thousand, seven hundred eighty-nine".