20187361248 has 48 divisors (see below), whose sum is σ = 53001688320. Its totient is φ = 6727867776.

The previous prime is 20187361247. The next prime is 20187361307. The reversal of 20187361248 is 84216378102.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20187361247) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 600633 + ... + 633351.

It is an arithmetic number, because the mean of its divisors is an integer number (1104201840).

Almost surely, 2^20187361248 is an apocalyptic number.

It is an amenable number.

20187361248 is an abundant number, since it is smaller than the sum of its proper divisors (32814327072).

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

20187361248 is a wasteful number, since it uses less digits than its factorization.

20187361248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39159 (or 39151 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 20187361248 in words is "twenty billion, one hundred eighty-seven million, three hundred sixty-one thousand, two hundred forty-eight".