98428637893 has 4 divisors (see below), whose sum is σ = 98431002208. Its totient is φ = 98426273580.

The previous prime is 98428637861. The next prime is 98428637917. The reversal of 98428637893 is 39873682489.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 98428637893 - 2⁵ = 98428637861 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 (98428637693) 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, 1118571 + ... + 1203352.

It is an arithmetic number, because the mean of its divisors is an integer number (24607750552).

Almost surely, 2^98428637893 is an apocalyptic number.

It is an amenable number.

98428637893 is a deficient number, since it is larger than the sum of its proper divisors (2364315).

98428637893 is a wasteful number, since it uses less digits than its factorization.

98428637893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364314.

The product of its digits is 125411328, while the sum is 67.

The spelling of 98428637893 in words is "ninety-eight billion, four hundred twenty-eight million, six hundred thirty-seven thousand, eight hundred ninety-three".