122398464326540 has 48 divisors (see below), whose sum is σ = 265998858025824. Its totient is φ = 47272524249600.

The previous prime is 122398464326533. The next prime is 122398464326561. The reversal of 122398464326540 is 45623464893221.

It is a self number, because there is not a number n which added to its sum of digits gives 122398464326540.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631213481 + ... + 631407360.

It is an arithmetic number, because the mean of its divisors is an integer number (5541642875538).

Almost surely, 2^{122398464326540} is an apocalyptic number.

122398464326540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122398464326540 is an abundant number, since it is smaller than the sum of its proper divisors (143600393699284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122398464326540 is a wasteful number, since it uses less digits than its factorization.

122398464326540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262621018 (or 1262621016 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 59.

The spelling of 122398464326540 in words is "one hundred twenty-two trillion, three hundred ninety-eight billion, four hundred sixty-four million, three hundred twenty-six thousand, five hundred forty".