7057843838 has 16 divisors (see below), whose sum is σ = 10763779824. Its totient is φ = 3469954560.

The previous prime is 7057843831. The next prime is 7057843843. The reversal of 7057843838 is 8383487507.

It is a self number, because there is not a number n which added to its sum of digits gives 7057843838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7057843831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474206 + ... + 488862.

It is an arithmetic number, because the mean of its divisors is an integer number (672736239).

Almost surely, 2^7057843838 is an apocalyptic number.

7057843838 is a deficient number, since it is larger than the sum of its proper divisors (3705935986).

7057843838 is a wasteful number, since it uses less digits than its factorization.

7057843838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18667.

The product of its (nonzero) digits is 4515840, while the sum is 53.

The square root of 7057843838 is about 84010.9745092866. The cubic root of 7057843838 is about 1918.1858440827.

The spelling of 7057843838 in words is "seven billion, fifty-seven million, eight hundred forty-three thousand, eight hundred thirty-eight".