1045556598239 has 4 divisors (see below), whose sum is σ = 1047296293680. Its totient is φ = 1043816902800.

The previous prime is 1045556598211. The next prime is 1045556598257. The reversal of 1045556598239 is 9328956555401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1045556598239 - 2¹⁶ = 1045556532703 is a prime.

It is a super-2 number, since 2×1045556598239² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045556598209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869846819 + ... + 869848020.

It is an arithmetic number, because the mean of its divisors is an integer number (261824073420).

Almost surely, 2^{1045556598239} is an apocalyptic number.

1045556598239 is a deficient number, since it is larger than the sum of its proper divisors (1739695441).

1045556598239 is an equidigital number, since it uses as much as digits as its factorization.

1045556598239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739695440.

The product of its (nonzero) digits is 58320000, while the sum is 62.

The spelling of 1045556598239 in words is "one trillion, forty-five billion, five hundred fifty-six million, five hundred ninety-eight thousand, two hundred thirty-nine".