1984929657048 has 160 divisors (see below), whose sum is σ = 5990022690960. Its totient is φ = 610470432000.

The previous prime is 1984929657013. The next prime is 1984929657049. The reversal of 1984929657048 is 8407569294891.

1984929657048 is a `hidden beast` number, since 1 + 9 + 8 + 4 + 9 + 2 + 9 + 6 + 570 + 48 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1984929657049) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18910086 + ... + 19014762.

Almost surely, 2^{1984929657048} is an apocalyptic number.

1984929657048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1984929657048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2995011345480).

1984929657048 is an abundant number, since it is smaller than the sum of its proper divisors (4005093033912).

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

1984929657048 is a wasteful number, since it uses less digits than its factorization.

1984929657048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106959 (or 106946 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 72.

The spelling of 1984929657048 in words is "one trillion, nine hundred eighty-four billion, nine hundred twenty-nine million, six hundred fifty-seven thousand, forty-eight".