7870109438 has 32 divisors (see below), whose sum is σ = 12916350720. Its totient is φ = 3580346880.

The previous prime is 7870109437. The next prime is 7870109447. The reversal of 7870109438 is 8349010787.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 7870109392 and 7870109401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7870109437) by changing a digit.

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, 1165520 + ... + 1172252.

It is an arithmetic number, because the mean of its divisors is an integer number (403635960).

Almost surely, 2^7870109438 is an apocalyptic number.

7870109438 is a deficient number, since it is larger than the sum of its proper divisors (5046241282).

7870109438 is a wasteful number, since it uses less digits than its factorization.

7870109438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7892.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 7870109438 is about 88713.6372718423. The cubic root of 7870109438 is about 1989.1166704941.

The spelling of 7870109438 in words is "seven billion, eight hundred seventy million, one hundred nine thousand, four hundred thirty-eight".