869748510149 has 4 divisors (see below), whose sum is σ = 882729831264. Its totient is φ = 856767189036.

The previous prime is 869748510097. The next prime is 869748510157. The reversal of 869748510149 is 941015847968.

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 not a de Polignac number, because 869748510149 - 2²⁸ = 869480074693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 869748510091 and 869748510100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869748510749) 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, 6490660457 + ... + 6490660590.

It is an arithmetic number, because the mean of its divisors is an integer number (220682457816).

Almost surely, 2^869748510149 is an apocalyptic number.

It is an amenable number.

869748510149 is a deficient number, since it is larger than the sum of its proper divisors (12981321115).

869748510149 is a wasteful number, since it uses less digits than its factorization.

869748510149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12981321114.

The product of its (nonzero) digits is 17418240, while the sum is 62.

The spelling of 869748510149 in words is "eight hundred sixty-nine billion, seven hundred forty-eight million, five hundred ten thousand, one hundred forty-nine".