10780449330 has 192 divisors, whose sum is σ = 32705925120. Its totient is φ = 2258928000.

The previous prime is 10780449319. The next prime is 10780449331. The reversal of 10780449330 is 3394408701.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10780449331) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 859605 + ... + 872055.

It is an arithmetic number, because the mean of its divisors is an integer number (170343360).

Almost surely, 2^10780449330 is an apocalyptic number.

10780449330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10780449330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16352962560).

10780449330 is an abundant number, since it is smaller than the sum of its proper divisors (21925475790).

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

10780449330 is a wasteful number, since it uses less digits than its factorization.

10780449330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12525 (or 12518 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 10780449330 in words is "ten billion, seven hundred eighty million, four hundred forty-nine thousand, three hundred thirty".