1983850451064 has 32 divisors (see below), whose sum is σ = 5510695698000. Its totient is φ = 661283483616.

The previous prime is 1983850451059. The next prime is 1983850451101. The reversal of 1983850451064 is 4601540583891.

It is a happy number.

1983850451064 is a `hidden beast` number, since 1 + 9 + 83 + 8 + 50 + 451 + 0 + 64 = 666.

It is a super-2 number, since 2×1983850451064² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1983850451064.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4592246199 + ... + 4592246630.

Almost surely, 2^{1983850451064} is an apocalyptic number.

It is an amenable number.

1983850451064 is an abundant number, since it is smaller than the sum of its proper divisors (3526845246936).

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

1983850451064 is a wasteful number, since it uses less digits than its factorization.

1983850451064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9184492844 (or 9184492834 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 1983850451064 in words is "one trillion, nine hundred eighty-three billion, eight hundred fifty million, four hundred fifty-one thousand, sixty-four".