3648552062778 has 48 divisors (see below), whose sum is σ = 9182616608256. Its totient is φ = 1025354207520.

The previous prime is 3648552062711. The next prime is 3648552062797. The reversal of 3648552062778 is 8772602558463.

3648552062778 is a `hidden beast` number, since 3 + 6 + 4 + 8 + 552 + 0 + 6 + 2 + 7 + 78 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237342826 + ... + 237358197.

It is an arithmetic number, because the mean of its divisors is an integer number (191304512672).

Almost surely, 2^{3648552062778} is an apocalyptic number.

3648552062778 is an abundant number, since it is smaller than the sum of its proper divisors (5534064545478).

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

3648552062778 is a wasteful number, since it uses less digits than its factorization.

3648552062778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474701099 (or 474701096 counting only the distinct ones).

The product of its (nonzero) digits is 135475200, while the sum is 63.

The spelling of 3648552062778 in words is "three trillion, six hundred forty-eight billion, five hundred fifty-two million, sixty-two thousand, seven hundred seventy-eight".