2621471745 has 32 divisors (see below), whose sum is σ = 4238479872. Its totient is φ = 1383452672.

The previous prime is 2621471729. The next prime is 2621471803. The reversal of 2621471745 is 5471741262.

It is not a de Polignac number, because 2621471745 - 2⁴ = 2621471729 is a prime.

It is a super-2 number, since 2×2621471745² = 13744228219666690050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1655224 + ... + 1656806.

It is an arithmetic number, because the mean of its divisors is an integer number (132452496).

Almost surely, 2^2621471745 is an apocalyptic number.

It is an amenable number.

2621471745 is a deficient number, since it is larger than the sum of its proper divisors (1617008127).

2621471745 is a wasteful number, since it uses less digits than its factorization.

2621471745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681.

The product of its digits is 94080, while the sum is 39.

The square root of 2621471745 is about 51200.3100088271. The cubic root of 2621471745 is about 1378.8437673962.

The spelling of 2621471745 in words is "two billion, six hundred twenty-one million, four hundred seventy-one thousand, seven hundred forty-five".