2500198949450 has 24 divisors (see below), whose sum is σ = 4852560050208. Its totient is φ = 956597858480.

The previous prime is 2500198949441. The next prime is 2500198949509. The reversal of 2500198949450 is 549498910052.

It is a Curzon 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 11 ways as a sum of consecutive naturals, for example, 1087041872 + ... + 1087044171.

It is an arithmetic number, because the mean of its divisors is an integer number (202190002092).

Almost surely, 2^{2500198949450} is an apocalyptic number.

2500198949450 is a deficient number, since it is larger than the sum of its proper divisors (2352361100758).

2500198949450 is a wasteful number, since it uses less digits than its factorization.

2500198949450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174086078 (or 2174086073 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 56.

The spelling of 2500198949450 in words is "two trillion, five hundred billion, one hundred ninety-eight million, nine hundred forty-nine thousand, four hundred fifty".