49158044938 has 4 divisors (see below), whose sum is σ = 73737067410. Its totient is φ = 24579022468.

The previous prime is 49158044891. The next prime is 49158044939. The reversal of 49158044938 is 83944085194.

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., 39181431249 + 9976613689 = 197943^2 + 99883^2 .

It is not an unprimeable number, because it can be changed into a prime (49158044939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12289511233 + ... + 12289511236.

Almost surely, 2^49158044938 is an apocalyptic number.

49158044938 is a deficient number, since it is larger than the sum of its proper divisors (24579022472).

49158044938 is a wasteful number, since it uses less digits than its factorization.

49158044938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24579022471.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 49158044938 in words is "forty-nine billion, one hundred fifty-eight million, forty-four thousand, nine hundred thirty-eight".