2621023045 has 16 divisors (see below), whose sum is σ = 3315083760. Its totient is φ = 1986310144.

The previous prime is 2621023019. The next prime is 2621023063. The reversal of 2621023045 is 5403201262.

It can be written as a sum of positive squares in 8 ways, for example, as 488984769 + 2132038276 = 22113^2 + 46174^2 .

It is a cyclic number.

It is not a de Polignac number, because 2621023045 - 2⁷ = 2621022917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162844 + ... + 178213.

It is an arithmetic number, because the mean of its divisors is an integer number (207192735).

Almost surely, 2^2621023045 is an apocalyptic number.

It is an amenable number.

2621023045 is a deficient number, since it is larger than the sum of its proper divisors (694060715).

2621023045 is a wasteful number, since it uses less digits than its factorization.

2621023045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341144.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2621023045 is about 51195.9280119034. The cubic root of 2621023045 is about 1378.7650937146.

The spelling of 2621023045 in words is "two billion, six hundred twenty-one million, twenty-three thousand, forty-five".