79481642452 has 6 divisors (see below), whose sum is σ = 139092874298. Its totient is φ = 39740821224.

The previous prime is 79481642431. The next prime is 79481642459. The reversal of 79481642452 is 25424618497.

It can be written as a sum of positive squares in only one way, i.e., 39742814736 + 39738827716 = 199356^2 + 199346^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 79481642452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79481642459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9935205303 + ... + 9935205310.

Almost surely, 2^79481642452 is an apocalyptic number.

It is an amenable number.

79481642452 is a deficient number, since it is larger than the sum of its proper divisors (59611231846).

79481642452 is a wasteful number, since it uses less digits than its factorization.

79481642452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19870410617 (or 19870410615 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 52.

The spelling of 79481642452 in words is "seventy-nine billion, four hundred eighty-one million, six hundred forty-two thousand, four hundred fifty-two".