180120283649479 has 2 divisors, whose sum is σ = 180120283649480. Its totient is φ = 180120283649478.

The previous prime is 180120283649473. The next prime is 180120283649483. The reversal of 180120283649479 is 974946382021081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 180120283649479 - 2²¹ = 180120281552327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 180120283649479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180120283649473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90060141824739 + 90060141824740.

It is an arithmetic number, because the mean of its divisors is an integer number (90060141824740).

Almost surely, 2^{180120283649479} is an apocalyptic number.

180120283649479 is a deficient number, since it is larger than the sum of its proper divisors (1).

180120283649479 is an equidigital number, since it uses as much as digits as its factorization.

180120283649479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41803776, while the sum is 64.

The spelling of 180120283649479 in words is "one hundred eighty trillion, one hundred twenty billion, two hundred eighty-three million, six hundred forty-nine thousand, four hundred seventy-nine".