49279125709 has 16 divisors (see below), whose sum is σ = 56109801600. Its totient is φ = 42841173760.

The previous prime is 49279125691. The next prime is 49279125719. The reversal of 49279125709 is 90752197294.

It is a happy number.

It is not a de Polignac number, because 49279125709 - 2⁹ = 49279125197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49279125709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49279125719) 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 15 ways as a sum of consecutive naturals, for example, 1155249 + ... + 1197145.

It is an arithmetic number, because the mean of its divisors is an integer number (3506862600).

Almost surely, 2^49279125709 is an apocalyptic number.

It is an amenable number.

49279125709 is a deficient number, since it is larger than the sum of its proper divisors (6830675891).

49279125709 is a wasteful number, since it uses less digits than its factorization.

49279125709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46580.

The product of its (nonzero) digits is 2857680, while the sum is 55.

The spelling of 49279125709 in words is "forty-nine billion, two hundred seventy-nine million, one hundred twenty-five thousand, seven hundred nine".