898619784340 has 12 divisors (see below), whose sum is σ = 1887101547156. Its totient is φ = 359447913728.

The previous prime is 898619784331. The next prime is 898619784353. The reversal of 898619784340 is 43487916898.

It can be written as a sum of positive squares in 2 ways, for example, as 399906993924 + 498712790416 = 632382^2 + 706196^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22465494589 + ... + 22465494628.

It is an arithmetic number, because the mean of its divisors is an integer number (157258462263).

Almost surely, 2^898619784340 is an apocalyptic number.

It is an amenable number.

898619784340 is an abundant number, since it is smaller than the sum of its proper divisors (988481762816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

898619784340 is a wasteful number, since it uses less digits than its factorization.

898619784340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44930989226 (or 44930989224 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 67.

The spelling of 898619784340 in words is "eight hundred ninety-eight billion, six hundred nineteen million, seven hundred eighty-four thousand, three hundred forty".