988137390601 has 3 divisors (see below), whose sum is σ = 988138384653. Its totient is φ = 988136396550.

The previous prime is 988137390511. The next prime is 988137390623. The reversal of 988137390601 is 106093731889.

The square root of 988137390601 is 994051.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 988137390601 - 2⁷ = 988137390473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (988137390001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 497026 + ... + 1491076.

It is an arithmetic number, because the mean of its divisors is an integer number (329379461551).

Almost surely, 2^988137390601 is an apocalyptic number.

988137390601 is the 994051-st square number.

988137390601 is the 497026-th centered octagonal number.

It is an amenable number.

988137390601 is a deficient number, since it is larger than the sum of its proper divisors (994052).

988137390601 is an frugal number, since it uses more digits than its factorization.

988137390601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988102 (or 994051 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 988137390601 in words is "nine hundred eighty-eight billion, one hundred thirty-seven million, three hundred ninety thousand, six hundred one".