49179434820 has 96 divisors (see below), whose sum is σ = 142525595520. Its totient is φ = 12655641600.

The previous prime is 49179434803. The next prime is 49179434867. The reversal of 49179434820 is 2843497194.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3896520 + ... + 3909120.

It is an arithmetic number, because the mean of its divisors is an integer number (1484641620).

Almost surely, 2^49179434820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49179434820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71262797760).

49179434820 is an abundant number, since it is smaller than the sum of its proper divisors (93346160700).

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

49179434820 is a wasteful number, since it uses less digits than its factorization.

49179434820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14885 (or 14883 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 49179434820 in words is "forty-nine billion, one hundred seventy-nine million, four hundred thirty-four thousand, eight hundred twenty".