988180455993 has 48 divisors (see below), whose sum is σ = 1380063456000. Its totient is φ = 628834752000.

The previous prime is 988180455979. The next prime is 988180456001. The reversal of 988180455993 is 399554081889.

It is not a de Polignac number, because 988180455993 - 2²¹ = 988178358841 is a prime.

It is a super-2 number, since 2×988180455993² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (988180454993) 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, 352794193 + ... + 352796993.

It is an arithmetic number, because the mean of its divisors is an integer number (28751322000).

Almost surely, 2^988180455993 is an apocalyptic number.

988180455993 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

It is an amenable number.

988180455993 is a deficient number, since it is larger than the sum of its proper divisors (391883000007).

988180455993 is a wasteful number, since it uses less digits than its factorization.

988180455993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494 (or 4463 counting only the distinct ones).

The product of its (nonzero) digits is 111974400, while the sum is 69.

The spelling of 988180455993 in words is "nine hundred eighty-eight billion, one hundred eighty million, four hundred fifty-five thousand, nine hundred ninety-three".