49157166378 has 8 divisors (see below), whose sum is σ = 98314332768. Its totient is φ = 16385722124.

The previous prime is 49157166353. The next prime is 49157166433. The reversal of 49157166378 is 87366175194.

It is a happy number.

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

49157166378 is an admirable number.

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, 4096430526 + ... + 4096430537.

It is an arithmetic number, because the mean of its divisors is an integer number (12289291596).

Almost surely, 2^49157166378 is an apocalyptic number.

49157166378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49157166378 is a wasteful number, since it uses less digits than its factorization.

49157166378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8192861068.

The product of its digits is 7620480, while the sum is 57.

The spelling of 49157166378 in words is "forty-nine billion, one hundred fifty-seven million, one hundred sixty-six thousand, three hundred seventy-eight".