77730055371254 has 16 divisors (see below), whose sum is σ = 136978838836560. Its totient is φ = 32614009246560.

The previous prime is 77730055371193. The next prime is 77730055371263. The reversal of 77730055371254 is 45217355003777.

It is a happy number.

77730055371254 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 77730055371254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135891704909 + ... + 135891705480.

It is an arithmetic number, because the mean of its divisors is an integer number (8561177427285).

Almost surely, 2^{77730055371254} is an apocalyptic number.

77730055371254 is a deficient number, since it is larger than the sum of its proper divisors (59248783465306).

77730055371254 is a wasteful number, since it uses less digits than its factorization.

77730055371254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271783410415.

The product of its (nonzero) digits is 21609000, while the sum is 56.

The spelling of 77730055371254 in words is "seventy-seven trillion, seven hundred thirty billion, fifty-five million, three hundred seventy-one thousand, two hundred fifty-four".