1980001598398 has 8 divisors (see below), whose sum is σ = 3126318313320. Its totient is φ = 937895493960.

The previous prime is 1980001598371. The next prime is 1980001598429. The reversal of 1980001598398 is 8938951000891.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 26052652573 + ... + 26052652648.

It is an arithmetic number, because the mean of its divisors is an integer number (390789789165).

Almost surely, 2^{1980001598398} is an apocalyptic number.

1980001598398 is a deficient number, since it is larger than the sum of its proper divisors (1146316714922).

1980001598398 is a wasteful number, since it uses less digits than its factorization.

1980001598398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52105305242.

The product of its (nonzero) digits is 5598720, while the sum is 61.

The spelling of 1980001598398 in words is "one trillion, nine hundred eighty billion, one million, five hundred ninety-eight thousand, three hundred ninety-eight".