79062751651561 has 4 divisors (see below), whose sum is σ = 79063346290500. Its totient is φ = 79062157012624.

The previous prime is 79062751651511. The next prime is 79062751651573. The reversal of 79062751651561 is 16515615726097.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47120756175936 + 31941995475625 = 6864456^2 + 5651725^2 .

It is a cyclic number.

It is not a de Polignac number, because 79062751651561 - 2¹⁵ = 79062751618793 is a prime.

It is a super-3 number, since 3×79062751651561³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79062751651561.

It is not an unprimeable number, because it can be changed into a prime (79062751651511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297119986 + ... + 297385963.

It is an arithmetic number, because the mean of its divisors is an integer number (19765836572625).

Almost surely, 2^{79062751651561} is an apocalyptic number.

It is an amenable number.

79062751651561 is a deficient number, since it is larger than the sum of its proper divisors (594638939).

79062751651561 is a wasteful number, since it uses less digits than its factorization.

79062751651561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594638938.

The product of its (nonzero) digits is 23814000, while the sum is 61.

The spelling of 79062751651561 in words is "seventy-nine trillion, sixty-two billion, seven hundred fifty-one million, six hundred fifty-one thousand, five hundred sixty-one".