561431610454 has 32 divisors (see below), whose sum is σ = 990011393280. Its totient is φ = 235414423200.

The previous prime is 561431610431. The next prime is 561431610457. The reversal of 561431610454 is 454016134165.

561431610454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×561431610454² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561431610457) 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, 183712 + ... + 1075459.

It is an arithmetic number, because the mean of its divisors is an integer number (30937856040).

Almost surely, 2^561431610454 is an apocalyptic number.

561431610454 is a deficient number, since it is larger than the sum of its proper divisors (428579782826).

561431610454 is a wasteful number, since it uses less digits than its factorization.

561431610454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260756.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 561431610454 in words is "five hundred sixty-one billion, four hundred thirty-one million, six hundred ten thousand, four hundred fifty-four".