77038073668 has 12 divisors (see below), whose sum is σ = 134820317632. Its totient is φ = 38517982920.

The previous prime is 77038073659. The next prime is 77038073677. The reversal of 77038073668 is 86637083077.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (77038073659) and next prime (77038073677).

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

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, 85680 + ... + 401767.

Almost surely, 2^77038073668 is an apocalyptic number.

It is an amenable number.

77038073668 is a deficient number, since it is larger than the sum of its proper divisors (57782243964).

77038073668 is a wasteful number, since it uses less digits than its factorization.

77038073668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526962 (or 526960 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 55.

The spelling of 77038073668 in words is "seventy-seven billion, thirty-eight million, seventy-three thousand, six hundred sixty-eight".