49593953809 has 9 divisors (see below), whose sum is σ = 50783929353. Its totient is φ = 48431252772.

The previous prime is 49593953807. The next prime is 49593953839. The reversal of 49593953809 is 90835939594.

The square root of 49593953809 is 222697.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 49593953809 - 2¹ = 49593953807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49593953807) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9573382 + ... + 9578560.

It is an arithmetic number, because the mean of its divisors is an integer number (5642658817).

Almost surely, 2^49593953809 is an apocalyptic number.

49593953809 is the 222697-th square number.

49593953809 is the 111349-th centered octagonal number.

It is an amenable number.

49593953809 is a deficient number, since it is larger than the sum of its proper divisors (1189975544).

49593953809 is an frugal number, since it uses more digits than its factorization.

49593953809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10444 (or 5222 counting only the distinct ones).

The product of its (nonzero) digits is 47239200, while the sum is 64.

Multiplying 49593953809 by its sum of digits (64), we get a square (3174013043776 = 1781576²).

The spelling of 49593953809 in words is "forty-nine billion, five hundred ninety-three million, nine hundred fifty-three thousand, eight hundred nine".