74555701775121 has 16 divisors (see below), whose sum is σ = 114711685397504. Its totient is φ = 42189634290384.

The previous prime is 74555701775101. The next prime is 74555701775129. The reversal of 74555701775121 is 12157710755547.

It is a happy number.

It is not a de Polignac number, because 74555701775121 - 2⁵ = 74555701775089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74555701775129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17234325571 + ... + 17234329896.

It is an arithmetic number, because the mean of its divisors is an integer number (7169480337344).

Almost surely, 2^{74555701775121} is an apocalyptic number.

It is an amenable number.

74555701775121 is a deficient number, since it is larger than the sum of its proper divisors (40155983622383).

74555701775121 is a wasteful number, since it uses less digits than its factorization.

74555701775121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34468655580.

The product of its (nonzero) digits is 12005000, while the sum is 57.

The spelling of 74555701775121 in words is "seventy-four trillion, five hundred fifty-five billion, seven hundred one million, seven hundred seventy-five thousand, one hundred twenty-one".