77089273613 has 4 divisors (see below), whose sum is σ = 84097389408. Its totient is φ = 70081157820.

The previous prime is 77089273603. The next prime is 77089273637. The reversal of 77089273613 is 31637298077.

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 77089273613 - 2⁶ = 77089273549 is a prime.

It is a super-2 number, since 2×77089273613² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77089273603) 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, 3504057881 + ... + 3504057902.

It is an arithmetic number, because the mean of its divisors is an integer number (21024347352).

Almost surely, 2^77089273613 is an apocalyptic number.

It is an amenable number.

77089273613 is a deficient number, since it is larger than the sum of its proper divisors (7008115795).

77089273613 is a wasteful number, since it uses less digits than its factorization.

77089273613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7008115794.

The product of its (nonzero) digits is 2667168, while the sum is 53.

The spelling of 77089273613 in words is "seventy-seven billion, eighty-nine million, two hundred seventy-three thousand, six hundred thirteen".