77026160641 has 4 divisors (see below), whose sum is σ = 77035700484. Its totient is φ = 77016620800.

The previous prime is 77026160621. The next prime is 77026160647. The reversal of 77026160641 is 14606162077.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26083865025 + 50942295616 = 161505^2 + 225704^2 .

It is a cyclic number.

It is not a de Polignac number, because 77026160641 - 2⁵ = 77026160609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77026160594 and 77026160603.

It is not an unprimeable number, because it can be changed into a prime (77026160647) 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, 4757800 + ... + 4773961.

It is an arithmetic number, because the mean of its divisors is an integer number (19258925121).

Almost surely, 2^77026160641 is an apocalyptic number.

It is an amenable number.

77026160641 is a deficient number, since it is larger than the sum of its proper divisors (9539843).

77026160641 is an equidigital number, since it uses as much as digits as its factorization.

77026160641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9539842.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 77026160641 in words is "seventy-seven billion, twenty-six million, one hundred sixty thousand, six hundred forty-one".