27954484235971 has 2 divisors, whose sum is σ = 27954484235972. Its totient is φ = 27954484235970.

The previous prime is 27954484235957. The next prime is 27954484236011. The reversal of 27954484235971 is 17953248445972.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27954484235971 - 2²⁵ = 27954450681539 is a prime.

It is a super-2 number, since 2×27954484235971² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27954484235971.

It is not a weakly prime, because it can be changed into another prime (27954484230971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13977242117985 + 13977242117986.

It is an arithmetic number, because the mean of its divisors is an integer number (13977242117986).

Almost surely, 2^{27954484235971} is an apocalyptic number.

27954484235971 is a deficient number, since it is larger than the sum of its proper divisors (1).

27954484235971 is an equidigital number, since it uses as much as digits as its factorization.

27954484235971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 609638400, while the sum is 70.

The spelling of 27954484235971 in words is "twenty-seven trillion, nine hundred fifty-four billion, four hundred eighty-four million, two hundred thirty-five thousand, nine hundred seventy-one".