147727780992 has 384 divisors, whose sum is σ = 504492408000. Its totient is φ = 42407608320.

The previous prime is 147727780979. The next prime is 147727781017. The reversal of 147727780992 is 299087727741.

147727780992 is a `hidden beast` number, since 1 + 477 + 2 + 7 + 78 + 0 + 9 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7936048 + ... + 7954640.

Almost surely, 2^147727780992 is an apocalyptic number.

147727780992 is a gapful number since it is divisible by the number (12) 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 147727780992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252246204000).

147727780992 is an abundant number, since it is smaller than the sum of its proper divisors (356764627008).

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

147727780992 is a wasteful number, since it uses less digits than its factorization.

147727780992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18657 (or 18628 counting only the distinct ones).

The product of its (nonzero) digits is 24893568, while the sum is 63.

The spelling of 147727780992 in words is "one hundred forty-seven billion, seven hundred twenty-seven million, seven hundred eighty thousand, nine hundred ninety-two".