49786453981836 has 384 divisors, whose sum is σ = 162823321221120. Its totient is φ = 12922476134400.

The previous prime is 49786453981787. The next prime is 49786453981867. The reversal of 49786453981836 is 63818935468794.

49786453981836 is a `hidden beast` number, since 4 + 9 + 7 + 8 + 6 + 45 + 398 + 183 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 17305500 + ... + 19976316.

It is an arithmetic number, because the mean of its divisors is an integer number (424019065680).

Almost surely, 2^{49786453981836} 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 49786453981836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81411660610560).

49786453981836 is an abundant number, since it is smaller than the sum of its proper divisors (113036867239284).

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

49786453981836 is a wasteful number, since it uses less digits than its factorization.

49786453981836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670942 (or 2670934 counting only the distinct ones).

The product of its digits is 7524679680, while the sum is 81.

The spelling of 49786453981836 in words is "forty-nine trillion, seven hundred eighty-six billion, four hundred fifty-three million, nine hundred eighty-one thousand, eight hundred thirty-six".