3631477032820 has 108 divisors (see below), whose sum is σ = 9606070665324. Its totient is φ = 1149302568960.

The previous prime is 3631477032817. The next prime is 3631477032889. The reversal of 3631477032820 is 282307741363.

It can be written as a sum of positive squares in 6 ways, for example, as 1374493622544 + 2256983410276 = 1172388^2 + 1502326^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10797661 + ... + 11128900.

It is an arithmetic number, because the mean of its divisors is an integer number (88945098753).

Almost surely, 2^{3631477032820} is an apocalyptic number.

It is an amenable number.

3631477032820 is an abundant number, since it is smaller than the sum of its proper divisors (5974593632504).

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

3631477032820 is a wasteful number, since it uses less digits than its factorization.

3631477032820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21926610 (or 21926588 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 46.

The spelling of 3631477032820 in words is "three trillion, six hundred thirty-one billion, four hundred seventy-seven million, thirty-two thousand, eight hundred twenty".