28075549653971 has 2 divisors, whose sum is σ = 28075549653972. Its totient is φ = 28075549653970.

The previous prime is 28075549653913. The next prime is 28075549654067. The reversal of 28075549653971 is 17935694557082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28075549653971 - 2²² = 28075545459667 is a prime.

It is a super-2 number, since 2×28075549653971² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28075549653895 and 28075549653904.

It is not a weakly prime, because it can be changed into another prime (28075549653901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14037774826985 + 14037774826986.

It is an arithmetic number, because the mean of its divisors is an integer number (14037774826986).

It is a 1-persistent number, because it is pandigital, but 2⋅28075549653971 = 56151099307942 is not.

Almost surely, 2^{28075549653971} is an apocalyptic number.

28075549653971 is a deficient number, since it is larger than the sum of its proper divisors (1).

28075549653971 is an equidigital number, since it uses as much as digits as its factorization.

28075549653971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536000, while the sum is 71.

The spelling of 28075549653971 in words is "twenty-eight trillion, seventy-five billion, five hundred forty-nine million, six hundred fifty-three thousand, nine hundred seventy-one".