77419303647109 has 4 divisors (see below), whose sum is σ = 77424264212704. Its totient is φ = 77414343081516.

The previous prime is 77419303647053. The next prime is 77419303647121. The reversal of 77419303647109 is 90174630391477.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-77419303647109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77419303647509) 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, 2480259387 + ... + 2480290600.

It is an arithmetic number, because the mean of its divisors is an integer number (19356066053176).

Almost surely, 2^{77419303647109} is an apocalyptic number.

It is an amenable number.

77419303647109 is a deficient number, since it is larger than the sum of its proper divisors (4960565595).

77419303647109 is a wasteful number, since it uses less digits than its factorization.

77419303647109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960565594.

The product of its (nonzero) digits is 24004512, while the sum is 61.

The spelling of 77419303647109 in words is "seventy-seven trillion, four hundred nineteen billion, three hundred three million, six hundred forty-seven thousand, one hundred nine".