505654341435634 has 4 divisors (see below), whose sum is σ = 758481512153454. Its totient is φ = 252827170717816.

The previous prime is 505654341435613. The next prime is 505654341435721. The reversal of 505654341435634 is 436534143456505.

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

It can be written as a sum of positive squares in only one way, i.e., 502604969835609 + 3049371600025 = 22418853^2 + 1746245^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126413585358907 + ... + 126413585358910.

Almost surely, 2^{505654341435634} is an apocalyptic number.

505654341435634 is a deficient number, since it is larger than the sum of its proper divisors (252827170717820).

505654341435634 is a wasteful number, since it uses less digits than its factorization.

505654341435634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252827170717819.

The product of its (nonzero) digits is 155520000, while the sum is 58.

The spelling of 505654341435634 in words is "five hundred five trillion, six hundred fifty-four billion, three hundred forty-one million, four hundred thirty-five thousand, six hundred thirty-four".