7838307842 has 32 divisors (see below), whose sum is σ = 12616456320. Its totient is φ = 3641379840.

The previous prime is 7838307817. The next prime is 7838307901. The reversal of 7838307842 is 2487038387.

It is a super-2 number, since 2×7838307842² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513188 + ... + 528240.

It is an arithmetic number, because the mean of its divisors is an integer number (394264260).

Almost surely, 2^7838307842 is an apocalyptic number.

7838307842 is a deficient number, since it is larger than the sum of its proper divisors (4778148478).

7838307842 is a wasteful number, since it uses less digits than its factorization.

7838307842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15338.

The product of its (nonzero) digits is 1806336, while the sum is 50.

The square root of 7838307842 is about 88534.2184807660. The cubic root of 7838307842 is about 1986.4338412285.

The spelling of 7838307842 in words is "seven billion, eight hundred thirty-eight million, three hundred seven thousand, eight hundred forty-two".