75654777745657 has 4 divisors (see below), whose sum is σ = 82532484813456. Its totient is φ = 68777070677860.

The previous prime is 75654777745643. The next prime is 75654777745691.

75654777745657 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75654777745657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75654777745607) 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, 3438853533883 + ... + 3438853533904.

It is an arithmetic number, because the mean of its divisors is an integer number (20633121203364).

Almost surely, 2^{75654777745657} is an apocalyptic number.

It is an amenable number.

75654777745657 is a deficient number, since it is larger than the sum of its proper divisors (6877707067799).

75654777745657 is a wasteful number, since it uses less digits than its factorization.

75654777745657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6877707067798.

The product of its digits is 42353640000, while the sum is 82.

The spelling of 75654777745657 in words is "seventy-five trillion, six hundred fifty-four billion, seven hundred seventy-seven million, seven hundred forty-five thousand, six hundred fifty-seven".