79667723143 has 16 divisors (see below), whose sum is σ = 85295923200. Its totient is φ = 74244572640.

The previous prime is 79667723131. The next prime is 79667723147. The reversal of 79667723143 is 34132776697.

It is a cyclic number.

It is not a de Polignac number, because 79667723143 - 2¹⁷ = 79667592071 is a prime.

It is a super-2 number, since 2×79667723143² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79667723147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228628 + ... + 460006.

It is an arithmetic number, because the mean of its divisors is an integer number (5330995200).

Almost surely, 2^79667723143 is an apocalyptic number.

79667723143 is a deficient number, since it is larger than the sum of its proper divisors (5628200057).

79667723143 is a wasteful number, since it uses less digits than its factorization.

79667723143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231822.

The product of its digits is 8001504, while the sum is 55.

The spelling of 79667723143 in words is "seventy-nine billion, six hundred sixty-seven million, seven hundred twenty-three thousand, one hundred forty-three".