2621452887 has 12 divisors (see below), whose sum is σ = 4009281120. Its totient is φ = 1644833088.

The previous prime is 2621452861. The next prime is 2621452901. The reversal of 2621452887 is 7882541262.

2621452887 is a `hidden beast` number, since 26 + 21 + 4 + 528 + 87 = 666.

It is not a de Polignac number, because 2621452887 - 2⁷ = 2621452759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621412887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8566687 + ... + 8566992.

It is an arithmetic number, because the mean of its divisors is an integer number (334106760).

Almost surely, 2^2621452887 is an apocalyptic number.

2621452887 is a deficient number, since it is larger than the sum of its proper divisors (1387828233).

2621452887 is a wasteful number, since it uses less digits than its factorization.

2621452887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17133702 (or 17133699 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 2621452887 is about 51200.1258494547. The cubic root of 2621452887 is about 1378.8404610731.

The spelling of 2621452887 in words is "two billion, six hundred twenty-one million, four hundred fifty-two thousand, eight hundred eighty-seven".