1225799452839 has 64 divisors (see below), whose sum is σ = 1910925281664. Its totient is φ = 692129857536.

The previous prime is 1225799452837. The next prime is 1225799452849. The reversal of 1225799452839 is 9382549975221.

It is not a de Polignac number, because 1225799452839 - 2¹ = 1225799452837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1225799452839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225799452831) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5405727 + ... + 5627919.

It is an arithmetic number, because the mean of its divisors is an integer number (29858207526).

Almost surely, 2^{1225799452839} is an apocalyptic number.

1225799452839 is a deficient number, since it is larger than the sum of its proper divisors (685125828825).

1225799452839 is a wasteful number, since it uses less digits than its factorization.

1225799452839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222436.

The product of its digits is 97977600, while the sum is 66.

The spelling of 1225799452839 in words is "one trillion, two hundred twenty-five billion, seven hundred ninety-nine million, four hundred fifty-two thousand, eight hundred thirty-nine".