561519969079 has 4 divisors (see below), whose sum is σ = 562672987984. Its totient is φ = 560366950176.

The previous prime is 561519969071. The next prime is 561519969151. The reversal of 561519969079 is 970969915165.

561519969079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 561519969079 - 2³ = 561519969071 is a prime.

It is a super-2 number, since 2×561519969079² (a number of 24 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 (561519969071) 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, 576508722 + ... + 576509695.

It is an arithmetic number, because the mean of its divisors is an integer number (140668246996).

Almost surely, 2^561519969079 is an apocalyptic number.

561519969079 is a deficient number, since it is larger than the sum of its proper divisors (1153018905).

561519969079 is a wasteful number, since it uses less digits than its factorization.

561519969079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153018904.

The product of its (nonzero) digits is 41334300, while the sum is 67.

The spelling of 561519969079 in words is "five hundred sixty-one billion, five hundred nineteen million, nine hundred sixty-nine thousand, seventy-nine".