76723243001 has 4 divisors (see below), whose sum is σ = 79368872100. Its totient is φ = 74077613904.

The previous prime is 76723242949. The next prime is 76723243007. The reversal of 76723243001 is 10034232767.

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 60724787776 + 15998455225 = 246424^2 + 126485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76723243001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76723243007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1322814506 + ... + 1322814563.

It is an arithmetic number, because the mean of its divisors is an integer number (19842218025).

Almost surely, 2^76723243001 is an apocalyptic number.

It is an amenable number.

76723243001 is a deficient number, since it is larger than the sum of its proper divisors (2645629099).

76723243001 is a wasteful number, since it uses less digits than its factorization.

76723243001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2645629098.

The product of its (nonzero) digits is 42336, while the sum is 35.

Adding to 76723243001 its reverse (10034232767), we get a palindrome (86757475768).

The spelling of 76723243001 in words is "seventy-six billion, seven hundred twenty-three million, two hundred forty-three thousand, one".