53934840988 has 18 divisors (see below), whose sum is σ = 107872139816. Its totient is φ = 23114405184.

The previous prime is 53934840943. The next prime is 53934840997. The reversal of 53934840988 is 88904843935.

It is a super-2 number, since 2×53934840988² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1206948 + ... + 1250836.

Almost surely, 2^53934840988 is an apocalyptic number.

It is an amenable number.

53934840988 is an abundant number, since it is smaller than the sum of its proper divisors (53937298828).

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

53934840988 is an frugal number, since it uses more digits than its factorization.

53934840988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87789 (or 43898 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 61.

The spelling of 53934840988 in words is "fifty-three billion, nine hundred thirty-four million, eight hundred forty thousand, nine hundred eighty-eight".