76440420899 has 16 divisors (see below), whose sum is σ = 84328667136. Its totient is φ = 68972419200.

The previous prime is 76440420887. The next prime is 76440420913. The reversal of 76440420899 is 99802404467.

It is a cyclic number.

It is not a de Polignac number, because 76440420899 - 2¹² = 76440416803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76440420899.

It is not an unprimeable number, because it can be changed into a prime (76440420839) 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, 621407 + ... + 734184.

It is an arithmetic number, because the mean of its divisors is an integer number (5270541696).

Almost surely, 2^76440420899 is an apocalyptic number.

76440420899 is a deficient number, since it is larger than the sum of its proper divisors (7888246237).

76440420899 is a wasteful number, since it uses less digits than its factorization.

76440420899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355746.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 76440420899 in words is "seventy-six billion, four hundred forty million, four hundred twenty thousand, eight hundred ninety-nine".