77011654646 has 8 divisors (see below), whose sum is σ = 115524768240. Its totient is φ = 38503398568.

The previous prime is 77011654633. The next prime is 77011654649. The reversal of 77011654646 is 64645611077.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 77011654646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77011654649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1174481 + ... + 1238316.

It is an arithmetic number, because the mean of its divisors is an integer number (14440596030).

Almost surely, 2^77011654646 is an apocalyptic number.

77011654646 is a deficient number, since it is larger than the sum of its proper divisors (38513113594).

77011654646 is a wasteful number, since it uses less digits than its factorization.

77011654646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428758.

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 77011654646 in words is "seventy-seven billion, eleven million, six hundred fifty-four thousand, six hundred forty-six".