82798598421 has 48 divisors (see below), whose sum is σ = 150477275520. Its totient is φ = 42617612160.

The previous prime is 82798598381. The next prime is 82798598437. The reversal of 82798598421 is 12489589728.

It is a de Polignac number, because none of the positive numbers 2^k-82798598421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82798593421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 472530 + ... + 623603.

It is an arithmetic number, because the mean of its divisors is an integer number (3134943240).

Almost surely, 2^82798598421 is an apocalyptic number.

It is an amenable number.

82798598421 is a deficient number, since it is larger than the sum of its proper divisors (67678677099).

82798598421 is a wasteful number, since it uses less digits than its factorization.

82798598421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096266 (or 1096263 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 63.

The spelling of 82798598421 in words is "eighty-two billion, seven hundred ninety-eight million, five hundred ninety-eight thousand, four hundred twenty-one".