49911617742840 has 448 divisors, whose sum is σ = 195689754662400. Its totient is φ = 11215004864256.

The previous prime is 49911617742839. The next prime is 49911617742853. The reversal of 49911617742840 is 4824771611994.

49911617742840 is a `hidden beast` number, since 4 + 9 + 9 + 1 + 1 + 617 + 7 + 4 + 2 + 8 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 9970869 + ... + 14115291.

Almost surely, 2^{49911617742840} is an apocalyptic number.

49911617742840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49911617742840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97844877331200).

49911617742840 is an abundant number, since it is smaller than the sum of its proper divisors (145778136919560).

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

49911617742840 is a wasteful number, since it uses less digits than its factorization.

49911617742840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144518 (or 4144499 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 49911617742840 in words is "forty-nine trillion, nine hundred eleven billion, six hundred seventeen million, seven hundred forty-two thousand, eight hundred forty".