10019821902 has 16 divisors (see below), whose sum is σ = 20505682560. Its totient is φ = 3262267512.

The previous prime is 10019821837. The next prime is 10019821939. The reversal of 10019821902 is 20912891001.

10019821902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 19418002 + ... + 19418517.

It is an arithmetic number, because the mean of its divisors is an integer number (1281605160).

Almost surely, 2^10019821902 is an apocalyptic number.

10019821902 is an abundant number, since it is smaller than the sum of its proper divisors (10485860658).

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

10019821902 is a wasteful number, since it uses less digits than its factorization.

10019821902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38836567.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 10019821902 in words is "ten billion, nineteen million, eight hundred twenty-one thousand, nine hundred two".