7068445507861 has 4 divisors (see below), whose sum is σ = 7124102559232. Its totient is φ = 7012788456492.

The previous prime is 7068445507847. The next prime is 7068445507943. The reversal of 7068445507861 is 1687055448607.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7068445507861 - 2²⁷ = 7068311290133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7068445507861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7068445507831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27828525495 + ... + 27828525748.

It is an arithmetic number, because the mean of its divisors is an integer number (1781025639808).

Almost surely, 2^{7068445507861} is an apocalyptic number.

It is an amenable number.

7068445507861 is a deficient number, since it is larger than the sum of its proper divisors (55657051371).

7068445507861 is a wasteful number, since it uses less digits than its factorization.

7068445507861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55657051370.

The product of its (nonzero) digits is 45158400, while the sum is 61.

The spelling of 7068445507861 in words is "seven trillion, sixty-eight billion, four hundred forty-five million, five hundred seven thousand, eight hundred sixty-one".