2651070021 has 8 divisors (see below), whose sum is σ = 3534998304. Its totient is φ = 1767260880.

The previous prime is 2651070011. The next prime is 2651070041. The reversal of 2651070021 is 1200701562.

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

It is not a de Polignac number, because 2651070021 - 2⁶ = 2651069957 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2651069973 and 2651070000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2651070011) 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 7 ways as a sum of consecutive naturals, for example, 68010 + ... + 99636.

It is an arithmetic number, because the mean of its divisors is an integer number (441874788).

Almost surely, 2^2651070021 is an apocalyptic number.

It is an amenable number.

2651070021 is a deficient number, since it is larger than the sum of its proper divisors (883928283).

2651070021 is a wasteful number, since it uses less digits than its factorization.

2651070021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59571.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 2651070021 is about 51488.5426187225. The cubic root of 2651070021 is about 1384.0137332341.

Adding to 2651070021 its reverse (1200701562), we get a palindrome (3851771583).

The spelling of 2651070021 in words is "two billion, six hundred fifty-one million, seventy thousand, twenty-one".