561413724698 has 4 divisors (see below), whose sum is σ = 842120587050. Its totient is φ = 280706862348.

The previous prime is 561413724667. The next prime is 561413724709. The reversal of 561413724698 is 896427314165.

It is a happy number.

561413724698 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, and also an emirpimes, since its reverse is a distinct semiprime: 896427314165 = 5 ⋅179285462833.

It can be written as a sum of positive squares in only one way, i.e., 421041361129 + 140372363569 = 648877^2 + 374663^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140353431173 + ... + 140353431176.

Almost surely, 2^561413724698 is an apocalyptic number.

561413724698 is a deficient number, since it is larger than the sum of its proper divisors (280706862352).

561413724698 is a wasteful number, since it uses less digits than its factorization.

561413724698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280706862351.

The product of its digits is 8709120, while the sum is 56.

The spelling of 561413724698 in words is "five hundred sixty-one billion, four hundred thirteen million, seven hundred twenty-four thousand, six hundred ninety-eight".