2478509909122 has 32 divisors (see below), whose sum is σ = 4012781415552. Its totient is φ = 1141348126464.

The previous prime is 2478509909033. The next prime is 2478509909149. The reversal of 2478509909122 is 2219099058742.

It is a super-2 number, since 2×2478509909122² (a number of 26 digits) contains 22 as substring.

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, 34338523 + ... + 34410625.

It is an arithmetic number, because the mean of its divisors is an integer number (125399419236).

Almost surely, 2^{2478509909122} is an apocalyptic number.

2478509909122 is a deficient number, since it is larger than the sum of its proper divisors (1534271506430).

2478509909122 is a wasteful number, since it uses less digits than its factorization.

2478509909122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75082.

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 2478509909122 in words is "two trillion, four hundred seventy-eight billion, five hundred nine million, nine hundred nine thousand, one hundred twenty-two".