2731442420550 has 48 divisors (see below), whose sum is σ = 6774109554240. Its totient is φ = 728370414240.

The previous prime is 2731442420519. The next prime is 2731442420557. The reversal of 2731442420550 is 550242441372.

It is a junction number, because it is equal to n+sod(n) for n = 2731442420499 and 2731442420508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731442420557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9149949 + ... + 9443751.

It is an arithmetic number, because the mean of its divisors is an integer number (141127282380).

Almost surely, 2^{2731442420550} is an apocalyptic number.

2731442420550 is an abundant number, since it is smaller than the sum of its proper divisors (4042667133690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2731442420550 is a wasteful number, since it uses less digits than its factorization.

2731442420550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355797 (or 355792 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 39.

The spelling of 2731442420550 in words is "two trillion, seven hundred thirty-one billion, four hundred forty-two million, four hundred twenty thousand, five hundred fifty".