612178109471 has 2 divisors, whose sum is σ = 612178109472. Its totient is φ = 612178109470.

The previous prime is 612178109461. The next prime is 612178109513. The reversal of 612178109471 is 174901871216.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 612178109471 - 2²² = 612173915167 is a prime.

It is a super-3 number, since 3×612178109471³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612178109461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306089054735 + 306089054736.

It is an arithmetic number, because the mean of its divisors is an integer number (306089054736).

Almost surely, 2^612178109471 is an apocalyptic number.

612178109471 is a deficient number, since it is larger than the sum of its proper divisors (1).

612178109471 is an equidigital number, since it uses as much as digits as its factorization.

612178109471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 47.

The spelling of 612178109471 in words is "six hundred twelve billion, one hundred seventy-eight million, one hundred nine thousand, four hundred seventy-one".