36637487447904 has 384 divisors, whose sum is σ = 123740701056000. Its totient is φ = 10329825521664.

The previous prime is 36637487447887. The next prime is 36637487447963. The reversal of 36637487447904 is 40974478473663.

It is a happy number.

36637487447904 is a `hidden beast` number, since 3 + 6 + 6 + 3 + 74 + 87 + 4 + 479 + 0 + 4 = 666.

It is a super-2 number, since 2×36637487447904² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 273913587 + ... + 274047309.

It is an arithmetic number, because the mean of its divisors is an integer number (322241409000).

Almost surely, 2^{36637487447904} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36637487447904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61870350528000).

36637487447904 is an abundant number, since it is smaller than the sum of its proper divisors (87103213608096).

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

36637487447904 is a wasteful number, since it uses less digits than its factorization.

36637487447904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134347 (or 134333 counting only the distinct ones).

The product of its (nonzero) digits is 2048385024, while the sum is 72.

The spelling of 36637487447904 in words is "thirty-six trillion, six hundred thirty-seven billion, four hundred eighty-seven million, four hundred forty-seven thousand, nine hundred four".