2905642867768 has 16 divisors (see below), whose sum is σ = 5459176271160. Its totient is φ = 1449862528800.

The previous prime is 2905642867733. The next prime is 2905642867871. The reversal of 2905642867768 is 8677682465092.

It is a happy number.

It is a super-2 number, since 2×2905642867768² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2905642867697 and 2905642867706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369858963 + ... + 369866818.

Almost surely, 2^{2905642867768} is an apocalyptic number.

It is an amenable number.

2905642867768 is a deficient number, since it is larger than the sum of its proper divisors (2553533403392).

2905642867768 is a wasteful number, since it uses less digits than its factorization.

2905642867768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739726278 (or 739726274 counting only the distinct ones).

The product of its (nonzero) digits is 487710720, while the sum is 70.

The spelling of 2905642867768 in words is "two trillion, nine hundred five billion, six hundred forty-two million, eight hundred sixty-seven thousand, seven hundred sixty-eight".