1990524164950 has 24 divisors (see below), whose sum is σ = 3788476693848. Its totient is φ = 777693161280.

The previous prime is 1990524164939. The next prime is 1990524164989. The reversal of 1990524164950 is 594614250991.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1990524164891 and 1990524164900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 462910447 + ... + 462914746.

It is an arithmetic number, because the mean of its divisors is an integer number (157853195577).

Almost surely, 2^{1990524164950} is an apocalyptic number.

1990524164950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1990524164950 is a deficient number, since it is larger than the sum of its proper divisors (1797952528898).

1990524164950 is a wasteful number, since it uses less digits than its factorization.

1990524164950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925825248 (or 925825243 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 55.

The spelling of 1990524164950 in words is "one trillion, nine hundred ninety billion, five hundred twenty-four million, one hundred sixty-four thousand, nine hundred fifty".