122415649493 has 4 divisors (see below), whose sum is σ = 122417362560. Its totient is φ = 122413936428.

The previous prime is 122415649487. The next prime is 122415649511. The reversal of 122415649493 is 394946514221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 394946514221 = 7 ⋅56420930603.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122415649493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122415649463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744455 + ... + 893892.

It is an arithmetic number, because the mean of its divisors is an integer number (30604340640).

Almost surely, 2^122415649493 is an apocalyptic number.

It is an amenable number.

122415649493 is a deficient number, since it is larger than the sum of its proper divisors (1713067).

122415649493 is an equidigital number, since it uses as much as digits as its factorization.

122415649493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713066.

The product of its digits is 1866240, while the sum is 50.

The spelling of 122415649493 in words is "one hundred twenty-two billion, four hundred fifteen million, six hundred forty-nine thousand, four hundred ninety-three".