76323961813 has 4 divisors (see below), whose sum is σ = 83262503808. Its totient is φ = 69385419820.

The previous prime is 76323961811. The next prime is 76323961849. The reversal of 76323961813 is 31816932367.

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 not a de Polignac number, because 76323961813 - 2¹ = 76323961811 is a prime.

It is a super-3 number, since 3×76323961813³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76323961811) 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 3 ways as a sum of consecutive naturals, for example, 3469270981 + ... + 3469271002.

It is an arithmetic number, because the mean of its divisors is an integer number (20815625952).

Almost surely, 2^76323961813 is an apocalyptic number.

It is an amenable number.

76323961813 is a deficient number, since it is larger than the sum of its proper divisors (6938541995).

76323961813 is a wasteful number, since it uses less digits than its factorization.

76323961813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6938541994.

The product of its digits is 979776, while the sum is 49.

The spelling of 76323961813 in words is "seventy-six billion, three hundred twenty-three million, nine hundred sixty-one thousand, eight hundred thirteen".