49575721064 has 32 divisors (see below), whose sum is σ = 93968516640. Its totient is φ = 24518894400.

The previous prime is 49575721043. The next prime is 49575721099. The reversal of 49575721064 is 46012757594.

It is a happy number.

49575721064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185054 + ... + 365234.

It is an arithmetic number, because the mean of its divisors is an integer number (2936516145).

Almost surely, 2^49575721064 is an apocalyptic number.

It is an amenable number.

49575721064 is a deficient number, since it is larger than the sum of its proper divisors (44392795576).

49575721064 is a wasteful number, since it uses less digits than its factorization.

49575721064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180561 (or 180557 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 49575721064 in words is "forty-nine billion, five hundred seventy-five million, seven hundred twenty-one thousand, sixty-four".