79581653146 has 16 divisors (see below), whose sum is σ = 119491977600. Its totient is φ = 39751017280.

The previous prime is 79581653143. The next prime is 79581653147. The reversal of 79581653146 is 64135618597.

It is not an unprimeable number, because it can be changed into a prime (79581653143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12336930 + ... + 12343378.

It is an arithmetic number, because the mean of its divisors is an integer number (7468248600).

Almost surely, 2^79581653146 is an apocalyptic number.

79581653146 is a deficient number, since it is larger than the sum of its proper divisors (39910324454).

79581653146 is a wasteful number, since it uses less digits than its factorization.

79581653146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11669.

The product of its digits is 5443200, while the sum is 55.

The spelling of 79581653146 in words is "seventy-nine billion, five hundred eighty-one million, six hundred fifty-three thousand, one hundred forty-six".