998462593453 has 4 divisors (see below), whose sum is σ = 1075267408348. Its totient is φ = 921657778560.

The previous prime is 998462593439. The next prime is 998462593477. The reversal of 998462593453 is 354395264899.

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 631424122884 + 367038470569 = 794622^2 + 605837^2 .

It is a cyclic number.

It is not a de Polignac number, because 998462593453 - 2¹³ = 998462585261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998462593493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38402407428 + ... + 38402407453.

It is an arithmetic number, because the mean of its divisors is an integer number (268816852087).

Almost surely, 2^998462593453 is an apocalyptic number.

It is an amenable number.

998462593453 is a deficient number, since it is larger than the sum of its proper divisors (76804814895).

998462593453 is a wasteful number, since it uses less digits than its factorization.

998462593453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76804814894.

The product of its digits is 251942400, while the sum is 67.

The spelling of 998462593453 in words is "nine hundred ninety-eight billion, four hundred sixty-two million, five hundred ninety-three thousand, four hundred fifty-three".