49519122720 has 48 divisors (see below), whose sum is σ = 155985238080. Its totient is φ = 13205099264.

The previous prime is 49519122701. The next prime is 49519122727. The reversal of 49519122720 is 2722191594.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (49519122727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51581940 + ... + 51582899.

It is an arithmetic number, because the mean of its divisors is an integer number (3249692460).

Almost surely, 2^49519122720 is an apocalyptic number.

49519122720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49519122720 is an abundant number, since it is smaller than the sum of its proper divisors (106466115360).

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

49519122720 is a wasteful number, since it uses less digits than its factorization.

49519122720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103164857 (or 103164849 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 49519122720 in words is "forty-nine billion, five hundred nineteen million, one hundred twenty-two thousand, seven hundred twenty".