79448772037 has 4 divisors (see below), whose sum is σ = 79450708896. Its totient is φ = 79446835180.

The previous prime is 79448772031. The next prime is 79448772049. The reversal of 79448772037 is 73027784497.

It is a happy number.

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 79448772037 - 2³⁵ = 45089033669 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79448772031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905539 + ... + 989392.

It is an arithmetic number, because the mean of its divisors is an integer number (19862677224).

Almost surely, 2^79448772037 is an apocalyptic number.

It is an amenable number.

79448772037 is a deficient number, since it is larger than the sum of its proper divisors (1936859).

79448772037 is a wasteful number, since it uses less digits than its factorization.

79448772037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936858.

The product of its (nonzero) digits is 16595712, while the sum is 58.

The spelling of 79448772037 in words is "seventy-nine billion, four hundred forty-eight million, seven hundred seventy-two thousand, thirty-seven".