121624332642487 has 2 divisors, whose sum is σ = 121624332642488. Its totient is φ = 121624332642486.

The previous prime is 121624332642451. The next prime is 121624332642539. The reversal of 121624332642487 is 784246233426121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121624332642487 - 2¹⁹ = 121624332118199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121624332642587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60812166321243 + 60812166321244.

It is an arithmetic number, because the mean of its divisors is an integer number (60812166321244).

Almost surely, 2^{121624332642487} is an apocalyptic number.

121624332642487 is a deficient number, since it is larger than the sum of its proper divisors (1).

121624332642487 is an equidigital number, since it uses as much as digits as its factorization.

121624332642487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18579456, while the sum is 55.

The spelling of 121624332642487 in words is "one hundred twenty-one trillion, six hundred twenty-four billion, three hundred thirty-two million, six hundred forty-two thousand, four hundred eighty-seven".