49179621856 has 24 divisors (see below), whose sum is σ = 97137782280. Its totient is φ = 24509708928.

The previous prime is 49179621787. The next prime is 49179621857. The reversal of 49179621856 is 65812697194.

It is a self number, because there is not a number n which added to its sum of digits gives 49179621856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49179621857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2493211 + ... + 2512858.

It is an arithmetic number, because the mean of its divisors is an integer number (4047407595).

Almost surely, 2^49179621856 is an apocalyptic number.

It is an amenable number.

49179621856 is a deficient number, since it is larger than the sum of its proper divisors (47958160424).

49179621856 is a wasteful number, since it uses less digits than its factorization.

49179621856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006386 (or 5006378 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 58.

The spelling of 49179621856 in words is "forty-nine billion, one hundred seventy-nine million, six hundred twenty-one thousand, eight hundred fifty-six".