2028019951 has 2 divisors, whose sum is σ = 2028019952. Its totient is φ = 2028019950.

The previous prime is 2028019943. The next prime is 2028019957. The reversal of 2028019951 is 1599108202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2028019951 - 2³ = 2028019943 is a prime.

It is a super-2 number, since 2×2028019951² = 8225729843308084802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2028019951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2028019957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014009975 + 1014009976.

It is an arithmetic number, because the mean of its divisors is an integer number (1014009976).

Almost surely, 2^2028019951 is an apocalyptic number.

2028019951 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028019951 is an equidigital number, since it uses as much as digits as its factorization.

2028019951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 2028019951 is about 45033.5425100003. The cubic root of 2028019951 is about 1265.7776054006. Note that the first 3 decimals are identical.

The spelling of 2028019951 in words is "two billion, twenty-eight million, nineteen thousand, nine hundred fifty-one".