1038719897890 has 32 divisors (see below), whose sum is σ = 1968352799040. Its totient is φ = 393569784000.

The previous prime is 1038719897869. The next prime is 1038719898001. The reversal of 1038719897890 is 987989178301.

It is a super-2 number, since 2×1038719897890² (a number of 25 digits) contains 22 as substring.

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, 1155225 + ... + 1847155.

It is an arithmetic number, because the mean of its divisors is an integer number (61511024970).

Almost surely, 2^{1038719897890} is an apocalyptic number.

1038719897890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1038719897890 is a deficient number, since it is larger than the sum of its proper divisors (929632901150).

1038719897890 is a wasteful number, since it uses less digits than its factorization.

1038719897890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699858.

The product of its (nonzero) digits is 54867456, while the sum is 70.

The spelling of 1038719897890 in words is "one trillion, thirty-eight billion, seven hundred nineteen million, eight hundred ninety-seven thousand, eight hundred ninety".