49172964289 has 2 divisors, whose sum is σ = 49172964290. Its totient is φ = 49172964288.

The previous prime is 49172964283. The next prime is 49172964331. The reversal of 49172964289 is 98246927194.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42873843600 + 6299120689 = 207060^2 + 79367^2 .

It is a cyclic number.

It is not a de Polignac number, because 49172964289 - 2⁵ = 49172964257 is a prime.

It is not a weakly prime, because it can be changed into another prime (49172964283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24586482144 + 24586482145.

It is an arithmetic number, because the mean of its divisors is an integer number (24586482145).

Almost surely, 2^49172964289 is an apocalyptic number.

It is an amenable number.

49172964289 is a deficient number, since it is larger than the sum of its proper divisors (1).

49172964289 is an equidigital number, since it uses as much as digits as its factorization.

49172964289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 61.

The spelling of 49172964289 in words is "forty-nine billion, one hundred seventy-two million, nine hundred sixty-four thousand, two hundred eighty-nine".