7065803785381 has 16 divisors (see below), whose sum is σ = 7712582105088. Its totient is φ = 6419764969200.

The previous prime is 7065803785357. The next prime is 7065803785423. The reversal of 7065803785381 is 1835873085607.

It is not a de Polignac number, because 7065803785381 - 2⁵ = 7065803785349 is a prime.

It is a super-2 number, since 2×7065803785381² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7065003785381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319549516 + ... + 319571626.

It is an arithmetic number, because the mean of its divisors is an integer number (482036381568).

Almost surely, 2^{7065803785381} is an apocalyptic number.

It is an amenable number.

7065803785381 is a deficient number, since it is larger than the sum of its proper divisors (646778319707).

7065803785381 is a wasteful number, since it uses less digits than its factorization.

7065803785381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37512.

The product of its (nonzero) digits is 33868800, while the sum is 61.

The spelling of 7065803785381 in words is "seven trillion, sixty-five billion, eight hundred three million, seven hundred eighty-five thousand, three hundred eighty-one".