49745564532 has 120 divisors (see below), whose sum is σ = 133899824520. Its totient is φ = 16094453760.

The previous prime is 49745564411. The next prime is 49745564567. The reversal of 49745564532 is 23546554794.

It is a happy number.

49745564532 is a `hidden beast` number, since 4 + 9 + 7 + 45 + 5 + 64 + 532 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 16805492496 + 32940072036 = 129636^2 + 181494^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2607444 + ... + 2626452.

It is an arithmetic number, because the mean of its divisors is an integer number (1115831871).

Almost surely, 2^49745564532 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 49745564532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66949912260).

49745564532 is an abundant number, since it is smaller than the sum of its proper divisors (84154259988).

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

49745564532 is a wasteful number, since it uses less digits than its factorization.

49745564532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19263 (or 19252 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 54.

The spelling of 49745564532 in words is "forty-nine billion, seven hundred forty-five million, five hundred sixty-four thousand, five hundred thirty-two".