15450531650 has 72 divisors (see below), whose sum is σ = 29580762960. Its totient is φ = 6002773920.

The previous prime is 15450531647. The next prime is 15450531671. The reversal of 15450531650 is 5613505451.

15450531650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 15450531650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20906981 + ... + 20907719.

It is an arithmetic number, because the mean of its divisors is an integer number (410843930).

Almost surely, 2^15450531650 is an apocalyptic number.

15450531650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15450531650 is a deficient number, since it is larger than the sum of its proper divisors (14130231310).

15450531650 is an equidigital number, since it uses as much as digits as its factorization.

15450531650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 15450531650 in words is "fifteen billion, four hundred fifty million, five hundred thirty-one thousand, six hundred fifty".