451780983192 has 128 divisors (see below), whose sum is σ = 1408541621760. Its totient is φ = 117312952320.

The previous prime is 451780983179. The next prime is 451780983319. The reversal of 451780983192 is 291389087154.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6977238 + ... + 7041690.

It is an arithmetic number, because the mean of its divisors is an integer number (11004231420).

Almost surely, 2^451780983192 is an apocalyptic number.

451780983192 is a gapful number since it is divisible by the number (42) 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 451780983192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (704270810880).

451780983192 is an abundant number, since it is smaller than the sum of its proper divisors (956760638568).

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

451780983192 is a wasteful number, since it uses less digits than its factorization.

451780983192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68273 (or 68269 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 451780983192 in words is "four hundred fifty-one billion, seven hundred eighty million, nine hundred eighty-three thousand, one hundred ninety-two".