49078823405 has 4 divisors (see below), whose sum is σ = 58894588092. Its totient is φ = 39263058720.

The previous prime is 49078823399. The next prime is 49078823407. The reversal of 49078823405 is 50432887094.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50432887094 = 2 ⋅25216443547.

It can be written as a sum of positive squares in 2 ways, for example, as 27118843684 + 21959979721 = 164678^2 + 148189^2 .

It is not a de Polignac number, because 49078823405 - 2⁴ = 49078823389 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 (49078823407) 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, 4907882336 + ... + 4907882345.

It is an arithmetic number, because the mean of its divisors is an integer number (14723647023).

Almost surely, 2^49078823405 is an apocalyptic number.

It is an amenable number.

49078823405 is a deficient number, since it is larger than the sum of its proper divisors (9815764687).

49078823405 is an equidigital number, since it uses as much as digits as its factorization.

49078823405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9815764686.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 49078823405 in words is "forty-nine billion, seventy-eight million, eight hundred twenty-three thousand, four hundred five".