2621274463 has 4 divisors (see below), whose sum is σ = 2621503080. Its totient is φ = 2621045848.

The previous prime is 2621274457. The next prime is 2621274497. The reversal of 2621274463 is 3644721262.

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

It is a cyclic number.

It is not a de Polignac number, because 2621274463 - 2¹⁷ = 2621143391 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 (2621274413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96148 + ... + 120361.

It is an arithmetic number, because the mean of its divisors is an integer number (655375770).

Almost surely, 2^2621274463 is an apocalyptic number.

2621274463 is a deficient number, since it is larger than the sum of its proper divisors (228617).

2621274463 is a wasteful number, since it uses less digits than its factorization.

2621274463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228616.

The product of its digits is 96768, while the sum is 37.

The square root of 2621274463 is about 51198.3834022130. The cubic root of 2621274463 is about 1378.8091776814.

The spelling of 2621274463 in words is "two billion, six hundred twenty-one million, two hundred seventy-four thousand, four hundred sixty-three".