77045653642755 has 16 divisors (see below), whose sum is σ = 140883480946944. Its totient is φ = 35220870236640.

The previous prime is 77045653642753. The next prime is 77045653642787. The reversal of 77045653642755 is 55724635654077.

It is not a de Polignac number, because 77045653642755 - 2¹ = 77045653642753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77045653642753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366884064861 + ... + 366884065070.

It is an arithmetic number, because the mean of its divisors is an integer number (8805217559184).

Almost surely, 2^{77045653642755} is an apocalyptic number.

77045653642755 is a deficient number, since it is larger than the sum of its proper divisors (63837827304189).

77045653642755 is a wasteful number, since it uses less digits than its factorization.

77045653642755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733768129946.

The product of its (nonzero) digits is 740880000, while the sum is 66.

The spelling of 77045653642755 in words is "seventy-seven trillion, forty-five billion, six hundred fifty-three million, six hundred forty-two thousand, seven hundred fifty-five".