515449409480490 has 128 divisors (see below), whose sum is σ = 1246633903607040. Its totient is φ = 136395731404800.

The previous prime is 515449409480483. The next prime is 515449409480519. The reversal of 515449409480490 is 94084904944515.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4554308782 + ... + 4554421958.

It is an arithmetic number, because the mean of its divisors is an integer number (9739327371930).

Almost surely, 2^{515449409480490} is an apocalyptic number.

515449409480490 is an abundant number, since it is smaller than the sum of its proper divisors (731184494126550).

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

515449409480490 is a wasteful number, since it uses less digits than its factorization.

515449409480490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115528.

The product of its (nonzero) digits is 149299200, while the sum is 66.

The spelling of 515449409480490 in words is "five hundred fifteen trillion, four hundred forty-nine billion, four hundred nine million, four hundred eighty thousand, four hundred ninety".