49789131445 has 8 divisors (see below), whose sum is σ = 59799884760. Its totient is φ = 39796020480.

The previous prime is 49789131443. The next prime is 49789131449. The reversal of 49789131445 is 54413198794.

It can be written as a sum of positive squares in 4 ways, for example, as 770728644 + 49018402801 = 27762^2 + 221401^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49789131445 - 2¹ = 49789131443 is a prime.

It is a super-2 number, since 2×49789131445² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49789131443) 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, 4404376 + ... + 4415665.

It is an arithmetic number, because the mean of its divisors is an integer number (7474985595).

Almost surely, 2^49789131445 is an apocalyptic number.

It is an amenable number.

49789131445 is a deficient number, since it is larger than the sum of its proper divisors (10010753315).

49789131445 is a wasteful number, since it uses less digits than its factorization.

49789131445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8821175.

The product of its digits is 4354560, while the sum is 55.

The spelling of 49789131445 in words is "forty-nine billion, seven hundred eighty-nine million, one hundred thirty-one thousand, four hundred forty-five".