77080038069 has 32 divisors (see below), whose sum is σ = 109382068224. Its totient is φ = 48179552960.

The previous prime is 77080038067. The next prime is 77080038097. The reversal of 77080038069 is 96083008077.

It is a cyclic number.

It is not a de Polignac number, because 77080038069 - 2¹ = 77080038067 is a prime.

It is a super-2 number, since 2×77080038069² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77080038067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 802054 + ... + 893000.

It is an arithmetic number, because the mean of its divisors is an integer number (3418189632).

Almost surely, 2^77080038069 is an apocalyptic number.

It is an amenable number.

77080038069 is a deficient number, since it is larger than the sum of its proper divisors (32302030155).

77080038069 is a wasteful number, since it uses less digits than its factorization.

77080038069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91217.

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 77080038069 in words is "seventy-seven billion, eighty million, thirty-eight thousand, sixty-nine".