988591313929 has 2 divisors, whose sum is σ = 988591313930. Its totient is φ = 988591313928.

The previous prime is 988591313861. The next prime is 988591313977. The reversal of 988591313929 is 929313195889.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 977211331600 + 11379982329 = 988540^2 + 106677^2 .

It is a cyclic number.

It is not a de Polignac number, because 988591313929 - 2¹¹ = 988591311881 is a prime.

It is not a weakly prime, because it can be changed into another prime (988591313999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494295656964 + 494295656965.

It is an arithmetic number, because the mean of its divisors is an integer number (494295656965).

Almost surely, 2^988591313929 is an apocalyptic number.

It is an amenable number.

988591313929 is a deficient number, since it is larger than the sum of its proper divisors (1).

988591313929 is an equidigital number, since it uses as much as digits as its factorization.

988591313929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37791360, while the sum is 67.

The spelling of 988591313929 in words is "nine hundred eighty-eight billion, five hundred ninety-one million, three hundred thirteen thousand, nine hundred twenty-nine".