49121189376 has 320 divisors, whose sum is σ = 163480965120. Its totient is φ = 12781486080.

The previous prime is 49121189347. The next prime is 49121189389. The reversal of 49121189376 is 67398112194.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5661970 + ... + 5670638.

It is an arithmetic number, because the mean of its divisors is an integer number (510878016).

Almost surely, 2^49121189376 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 49121189376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81740482560).

49121189376 is an abundant number, since it is smaller than the sum of its proper divisors (114359775744).

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

49121189376 is a wasteful number, since it uses less digits than its factorization.

49121189376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8745 (or 8729 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The spelling of 49121189376 in words is "forty-nine billion, one hundred twenty-one million, one hundred eighty-nine thousand, three hundred seventy-six".