2731557221463 has 16 divisors (see below), whose sum is σ = 4171854410240. Its totient is φ = 1557334277856.

The previous prime is 2731557221461. The next prime is 2731557221467. The reversal of 2731557221463 is 3641227551372.

It is not a de Polignac number, because 2731557221463 - 2¹ = 2731557221461 is a prime.

It is a super-2 number, since 2×2731557221463² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731557221461) 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, 148139020 + ... + 148157457.

It is an arithmetic number, because the mean of its divisors is an integer number (260740900640).

Almost surely, 2^{2731557221463} is an apocalyptic number.

2731557221463 is a deficient number, since it is larger than the sum of its proper divisors (1440297188777).

2731557221463 is a wasteful number, since it uses less digits than its factorization.

2731557221463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296296926.

The product of its digits is 2116800, while the sum is 48.

The spelling of 2731557221463 in words is "two trillion, seven hundred thirty-one billion, five hundred fifty-seven million, two hundred twenty-one thousand, four hundred sixty-three".