49478068634 has 4 divisors (see below), whose sum is σ = 74217102954. Its totient is φ = 24739034316.

The previous prime is 49478068631. The next prime is 49478068639. The reversal of 49478068634 is 43686087494.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 46085355625 + 3392713009 = 214675^2 + 58247^2 .

It is a super-3 number, since 3×49478068634³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (49478068631) 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 as a sum of consecutive naturals, namely, 12369517157 + ... + 12369517160.

Almost surely, 2^49478068634 is an apocalyptic number.

49478068634 is a deficient number, since it is larger than the sum of its proper divisors (24739034320).

49478068634 is a wasteful number, since it uses less digits than its factorization.

49478068634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24739034319.

The product of its (nonzero) digits is 27869184, while the sum is 59.

The spelling of 49478068634 in words is "forty-nine billion, four hundred seventy-eight million, sixty-eight thousand, six hundred thirty-four".