5598077397721 has 4 divisors (see below), whose sum is σ = 5599516866100. Its totient is φ = 5596637929344.

The previous prime is 5598077397697. The next prime is 5598077397727. The reversal of 5598077397721 is 1277937708955.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3224937147721 + 2373140250000 = 1795811^2 + 1540500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5598077397721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5598077397727) 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, 719728356 + ... + 719736133.

It is an arithmetic number, because the mean of its divisors is an integer number (1399879216525).

Almost surely, 2^{5598077397721} is an apocalyptic number.

It is an amenable number.

5598077397721 is a deficient number, since it is larger than the sum of its proper divisors (1439468379).

5598077397721 is a wasteful number, since it uses less digits than its factorization.

5598077397721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439468378.

The product of its (nonzero) digits is 233377200, while the sum is 70.

The spelling of 5598077397721 in words is "five trillion, five hundred ninety-eight billion, seventy-seven million, three hundred ninety-seven thousand, seven hundred twenty-one".