76884507838 has 4 divisors (see below), whose sum is σ = 115326761760. Its totient is φ = 38442253918.

The previous prime is 76884507797. The next prime is 76884507857. The reversal of 76884507838 is 83870548867.

It is a happy number.

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

It is a super-2 number, since 2×76884507838² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76884507838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19221126958 + ... + 19221126961.

It is an arithmetic number, because the mean of its divisors is an integer number (28831690440).

Almost surely, 2^76884507838 is an apocalyptic number.

76884507838 is a deficient number, since it is larger than the sum of its proper divisors (38442253922).

76884507838 is a wasteful number, since it uses less digits than its factorization.

76884507838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38442253921.

The product of its (nonzero) digits is 72253440, while the sum is 64.

The spelling of 76884507838 in words is "seventy-six billion, eight hundred eighty-four million, five hundred seven thousand, eight hundred thirty-eight".