79505282140 has 24 divisors (see below), whose sum is σ = 168521481072. Its totient is φ = 31504896000.

The previous prime is 79505282081. The next prime is 79505282149. The reversal of 79505282140 is 4128250597.

It is a super-2 number, since 2×79505282140² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79505282149) 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, 18573861 + ... + 18578140.

It is an arithmetic number, because the mean of its divisors is an integer number (7021728378).

Almost surely, 2^79505282140 is an apocalyptic number.

It is an amenable number.

79505282140 is an abundant number, since it is smaller than the sum of its proper divisors (89016198932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79505282140 is a wasteful number, since it uses less digits than its factorization.

79505282140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37152117 (or 37152115 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 79505282140 in words is "seventy-nine billion, five hundred five million, two hundred eighty-two thousand, one hundred forty".