49678042186 has 8 divisors (see below), whose sum is σ = 74544178500. Its totient is φ = 24829982688.

The previous prime is 49678042153. The next prime is 49678042199. The reversal of 49678042186 is 68124087694.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 46865755225 + 2812286961 = 216485^2 + 53031^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4512331 + ... + 4523326.

Almost surely, 2^49678042186 is an apocalyptic number.

49678042186 is a deficient number, since it is larger than the sum of its proper divisors (24866136314).

49678042186 is a wasteful number, since it uses less digits than its factorization.

49678042186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9038408.

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 49678042186 in words is "forty-nine billion, six hundred seventy-eight million, forty-two thousand, one hundred eighty-six".