122487661479 has 8 divisors (see below), whose sum is σ = 166791709440. Its totient is φ = 79921027256.

The previous prime is 122487661421. The next prime is 122487661547. The reversal of 122487661479 is 974166784221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122487661479 - 2¹³ = 122487653287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122487661409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434353269 + ... + 434353550.

It is an arithmetic number, because the mean of its divisors is an integer number (20848963680).

Almost surely, 2^122487661479 is an apocalyptic number.

122487661479 is a deficient number, since it is larger than the sum of its proper divisors (44304047961).

122487661479 is an equidigital number, since it uses as much as digits as its factorization.

122487661479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868706869.

The product of its digits is 8128512, while the sum is 57.

The spelling of 122487661479 in words is "one hundred twenty-two billion, four hundred eighty-seven million, six hundred sixty-one thousand, four hundred seventy-nine".