77077403474338 has 24 divisors (see below), whose sum is σ = 124127974053468. Its totient is φ = 35866805828832.

The previous prime is 77077403474327. The next prime is 77077403474411. The reversal of 77077403474338 is 83347430477077.

It can be written as a sum of positive squares in 2 ways, for example, as 74092964106529 + 2984439367809 = 8607727^2 + 1727553^2 .

It is a super-2 number, since 2×77077403474338² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77077403474338.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 984447181 + ... + 984525472.

Almost surely, 2^{77077403474338} is an apocalyptic number.

77077403474338 is a deficient number, since it is larger than the sum of its proper divisors (47050570579130).

77077403474338 is a wasteful number, since it uses less digits than its factorization.

77077403474338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968972738 (or 1968972715 counting only the distinct ones).

The product of its (nonzero) digits is 232339968, while the sum is 64.

The spelling of 77077403474338 in words is "seventy-seven trillion, seventy-seven billion, four hundred three million, four hundred seventy-four thousand, three hundred thirty-eight".