79661147541 has 8 divisors (see below), whose sum is σ = 106220066880. Its totient is φ = 53104829952.

The previous prime is 79661147539. The next prime is 79661147543. The reversal of 79661147541 is 14574116697.

It is an interprime number because it is at equal distance from previous prime (79661147539) and next prime (79661147543).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79661147541 - 2¹ = 79661147539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79661147543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577836 + ... + 702293.

It is an arithmetic number, because the mean of its divisors is an integer number (13277508360).

Almost surely, 2^79661147541 is an apocalyptic number.

It is an amenable number.

79661147541 is a deficient number, since it is larger than the sum of its proper divisors (26558919339).

79661147541 is a wasteful number, since it uses less digits than its factorization.

79661147541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300875.

The product of its digits is 1270080, while the sum is 51.

The spelling of 79661147541 in words is "seventy-nine billion, six hundred sixty-one million, one hundred forty-seven thousand, five hundred forty-one".