368317778481 has 16 divisors (see below), whose sum is σ = 546491608320. Its totient is φ = 245169147600.

The previous prime is 368317778473. The next prime is 368317778483. The reversal of 368317778481 is 184877713863.

368317778481 is a `hidden beast` number, since 3 + 6 + 83 + 1 + 7 + 7 + 78 + 481 = 666.

It is not a de Polignac number, because 368317778481 - 2³ = 368317778473 is a prime.

It is a super-2 number, since 2×368317778481² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (368317778483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10427545 + ... + 10462806.

It is an arithmetic number, because the mean of its divisors is an integer number (34155725520).

Almost surely, 2^368317778481 is an apocalyptic number.

It is an amenable number.

368317778481 is a deficient number, since it is larger than the sum of its proper divisors (178173829839).

368317778481 is a wasteful number, since it uses less digits than its factorization.

368317778481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20891013 (or 20891007 counting only the distinct ones).

The product of its digits is 37933056, while the sum is 63.

The spelling of 368317778481 in words is "three hundred sixty-eight billion, three hundred seventeen million, seven hundred seventy-eight thousand, four hundred eighty-one".