2028011072621 has 16 divisors (see below), whose sum is σ = 2056085434368. Its totient is φ = 2000160288000.

The previous prime is 2028011072599. The next prime is 2028011072657. The reversal of 2028011072621 is 1262701108202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2028011072621 is a prime.

It is a super-2 number, since 2×2028011072621² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028011071621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14853656 + ... + 14989566.

It is an arithmetic number, because the mean of its divisors is an integer number (128505339648).

Almost surely, 2^{2028011072621} is an apocalyptic number.

It is an amenable number.

2028011072621 is a deficient number, since it is larger than the sum of its proper divisors (28074361747).

2028011072621 is a wasteful number, since it uses less digits than its factorization.

2028011072621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136732.

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 2028011072621 in words is "two trillion, twenty-eight billion, eleven million, seventy-two thousand, six hundred twenty-one".