49811951712 has 192 divisors, whose sum is σ = 137952460800. Its totient is φ = 15716682240.

The previous prime is 49811951689. The next prime is 49811951737. The reversal of 49811951712 is 21715911894.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 41963983 + ... + 41965169.

It is an arithmetic number, because the mean of its divisors is an integer number (718502400).

Almost surely, 2^49811951712 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 49811951712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68976230400).

49811951712 is an abundant number, since it is smaller than the sum of its proper divisors (88140509088).

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

49811951712 is a wasteful number, since it uses less digits than its factorization.

49811951712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529 (or 1521 counting only the distinct ones).

The product of its digits is 181440, while the sum is 48.

The spelling of 49811951712 in words is "forty-nine billion, eight hundred eleven million, nine hundred fifty-one thousand, seven hundred twelve".