49878487894 has 8 divisors (see below), whose sum is σ = 75871502928. Its totient is φ = 24587986920.

The previous prime is 49878487847. The next prime is 49878487909.

49878487894 is nontrivially palindromic in base 10.

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

It is a self number, because there is not a number n which added to its sum of digits gives 49878487894.

It is a congruent 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, 175628337 + ... + 175628620.

It is an arithmetic number, because the mean of its divisors is an integer number (9483937866).

Almost surely, 2^49878487894 is an apocalyptic number.

49878487894 is a deficient number, since it is larger than the sum of its proper divisors (25993015034).

49878487894 is a wasteful number, since it uses less digits than its factorization.

49878487894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351257030.

The product of its digits is 1040449536, while the sum is 76.

The spelling of 49878487894 in words is "forty-nine billion, eight hundred seventy-eight million, four hundred eighty-seven thousand, eight hundred ninety-four".