1649227623984 has 200 divisors, whose sum is σ = 4873643691840. Its totient is φ = 538265520000.

The previous prime is 1649227623949. The next prime is 1649227623997. The reversal of 1649227623984 is 4893267229461.

1649227623984 is a `hidden beast` number, since 1 + 6 + 492 + 2 + 7 + 62 + 3 + 9 + 84 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19149499 + ... + 19235429.

Almost surely, 2^{1649227623984} 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 1649227623984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2436821845920).

1649227623984 is an abundant number, since it is smaller than the sum of its proper divisors (3224416067856).

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

1649227623984 is a wasteful number, since it uses less digits than its factorization.

1649227623984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86261 (or 86246 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 63.

The spelling of 1649227623984 in words is "one trillion, six hundred forty-nine billion, two hundred twenty-seven million, six hundred twenty-three thousand, nine hundred eighty-four".