18252190195490 has 32 divisors (see below), whose sum is σ = 34777228495680. Its totient is φ = 6885188662464.

The previous prime is 18252190195471. The next prime is 18252190195531. The reversal of 18252190195490 is 9459109125281.

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 15 ways as a sum of consecutive naturals, for example, 731831564 + ... + 731856503.

It is an arithmetic number, because the mean of its divisors is an integer number (1086788390490).

Almost surely, 2^{18252190195490} is an apocalyptic number.

18252190195490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18252190195490 is a deficient number, since it is larger than the sum of its proper divisors (16525038300190).

18252190195490 is a wasteful number, since it uses less digits than its factorization.

18252190195490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463688146.

The product of its (nonzero) digits is 2332800, while the sum is 56.

The spelling of 18252190195490 in words is "eighteen trillion, two hundred fifty-two billion, one hundred ninety million, one hundred ninety-five thousand, four hundred ninety".