561414720477 has 32 divisors (see below), whose sum is σ = 848862891520. Its totient is φ = 327186475200.

The previous prime is 561414720473. The next prime is 561414720499. The reversal of 561414720477 is 774027414165.

It is a happy number.

It is not a de Polignac number, because 561414720477 - 2² = 561414720473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561414720473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1979718 + ... + 2245464.

It is an arithmetic number, because the mean of its divisors is an integer number (26526965360).

Almost surely, 2^561414720477 is an apocalyptic number.

561414720477 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

561414720477 is a deficient number, since it is larger than the sum of its proper divisors (287448171043).

561414720477 is a wasteful number, since it uses less digits than its factorization.

561414720477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268633.

The product of its (nonzero) digits is 1317120, while the sum is 48.

The spelling of 561414720477 in words is "five hundred sixty-one billion, four hundred fourteen million, seven hundred twenty thousand, four hundred seventy-seven".