7445117838 has 16 divisors (see below), whose sum is σ = 15037664976. Its totient is φ = 2457134400.

The previous prime is 7445117803. The next prime is 7445117843. The reversal of 7445117838 is 8387115447.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6142231 + ... + 6143442.

It is an arithmetic number, because the mean of its divisors is an integer number (939854061).

Almost surely, 2^7445117838 is an apocalyptic number.

7445117838 is an abundant number, since it is smaller than the sum of its proper divisors (7592547138).

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

7445117838 is a wasteful number, since it uses less digits than its factorization.

7445117838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12285779.

The product of its digits is 752640, while the sum is 48.

The square root of 7445117838 is about 86285.0962681273. The cubic root of 7445117838 is about 1952.6475401315.

The spelling of 7445117838 in words is "seven billion, four hundred forty-five million, one hundred seventeen thousand, eight hundred thirty-eight".