2642050645 has 8 divisors (see below), whose sum is σ = 3414342456. Its totient is φ = 1951052736.

The previous prime is 2642050633. The next prime is 2642050667. The reversal of 2642050645 is 5460502462.

It can be written as a sum of positive squares in 4 ways, for example, as 3481956 + 2638568689 = 1866^2 + 51367^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2642050645 - 2¹⁷ = 2641919573 is a prime.

It is a super-2 number, since 2×2642050645² = 13960863221489832050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2642050645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20323402 + ... + 20323531.

It is an arithmetic number, because the mean of its divisors is an integer number (426792807).

Almost surely, 2^2642050645 is an apocalyptic number.

It is an amenable number.

2642050645 is a deficient number, since it is larger than the sum of its proper divisors (772291811).

2642050645 is a wasteful number, since it uses less digits than its factorization.

2642050645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40646951.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 2642050645 is about 51400.8817531373. The cubic root of 2642050645 is about 1382.4424025002.

The spelling of 2642050645 in words is "two billion, six hundred forty-two million, fifty thousand, six hundred forty-five".