76649013706 has 4 divisors (see below), whose sum is σ = 114973520562. Its totient is φ = 38324506852.

The previous prime is 76649013689. The next prime is 76649013737. The reversal of 76649013706 is 60731094667.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 41000175225 + 35648838481 = 202485^2 + 188809^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 76649013706.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19162253425 + ... + 19162253428.

Almost surely, 2^76649013706 is an apocalyptic number.

76649013706 is a deficient number, since it is larger than the sum of its proper divisors (38324506856).

76649013706 is a wasteful number, since it uses less digits than its factorization.

76649013706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38324506855.

The product of its (nonzero) digits is 1143072, while the sum is 49.

The spelling of 76649013706 in words is "seventy-six billion, six hundred forty-nine million, thirteen thousand, seven hundred six".