77341848862868 has 6 divisors (see below), whose sum is σ = 135348235510026. Its totient is φ = 38670924431432.

The previous prime is 77341848862867. The next prime is 77341848862879. The reversal of 77341848862868 is 86826884814377.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 75670548049924 + 1671300812944 = 8698882^2 + 1292788^2 .

It is a super-2 number, since 2×77341848862868² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77341848862792 and 77341848862801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77341848862867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9667731107855 + ... + 9667731107862.

It is an arithmetic number, because the mean of its divisors is an integer number (22558039251671).

Almost surely, 2^{77341848862868} is an apocalyptic number.

It is an amenable number.

77341848862868 is a deficient number, since it is larger than the sum of its proper divisors (58006386647158).

77341848862868 is a wasteful number, since it uses less digits than its factorization.

77341848862868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19335462215721 (or 19335462215719 counting only the distinct ones).

The product of its digits is 5549064192, while the sum is 80.

The spelling of 77341848862868 in words is "seventy-seven trillion, three hundred forty-one billion, eight hundred forty-eight million, eight hundred sixty-two thousand, eight hundred sixty-eight".