76374537121 has 4 divisors (see below), whose sum is σ = 76417230100. Its totient is φ = 76331844144.

The previous prime is 76374537089. The next prime is 76374537131. The reversal of 76374537121 is 12173547367.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63033132096 + 13341405025 = 251064^2 + 115505^2 .

It is a cyclic number.

It is not a de Polignac number, because 76374537121 - 2⁵ = 76374537089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76374537131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21343806 + ... + 21347383.

It is an arithmetic number, because the mean of its divisors is an integer number (19104307525).

Almost surely, 2^76374537121 is an apocalyptic number.

It is an amenable number.

76374537121 is a deficient number, since it is larger than the sum of its proper divisors (42692979).

76374537121 is a wasteful number, since it uses less digits than its factorization.

76374537121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42692978.

The product of its digits is 740880, while the sum is 46.

The spelling of 76374537121 in words is "seventy-six billion, three hundred seventy-four million, five hundred thirty-seven thousand, one hundred twenty-one".