49718377078986 has 192 divisors, whose sum is σ = 126628971217920. Its totient is φ = 12868690464000.

The previous prime is 49718377078921. The next prime is 49718377078999. The reversal of 49718377078986 is 68987077381794.

It is a junction number, because it is equal to n+sod(n) for n = 49718377078899 and 49718377078908.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1284328171 + ... + 1284366881.

It is an arithmetic number, because the mean of its divisors is an integer number (659525891760).

Almost surely, 2^{49718377078986} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49718377078986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63314485608960).

49718377078986 is an abundant number, since it is smaller than the sum of its proper divisors (76910594138934).

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

49718377078986 is a wasteful number, since it uses less digits than its factorization.

49718377078986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40121 (or 40114 counting only the distinct ones).

The product of its (nonzero) digits is 7169347584, while the sum is 84.

The spelling of 49718377078986 in words is "forty-nine trillion, seven hundred eighteen billion, three hundred seventy-seven million, seventy-eight thousand, nine hundred eighty-six".