49678042185 has 48 divisors (see below), whose sum is σ = 88801764480. Its totient is φ = 25678947840.

The previous prime is 49678042153. The next prime is 49678042199. The reversal of 49678042185 is 58124087694.

It is a happy number.

49678042185 is a `hidden beast` number, since 4 + 9 + 67 + 80 + 421 + 85 = 666.

It is not a de Polignac number, because 49678042185 - 2⁵ = 49678042153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56737 + ... + 320273.

It is an arithmetic number, because the mean of its divisors is an integer number (1850036760).

Almost surely, 2^49678042185 is an apocalyptic number.

49678042185 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49678042185 is a deficient number, since it is larger than the sum of its proper divisors (39123722295).

49678042185 is a wasteful number, since it uses less digits than its factorization.

49678042185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263678 (or 263675 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 49678042185 in words is "forty-nine billion, six hundred seventy-eight million, forty-two thousand, one hundred eighty-five".