2478990709008 has 400 divisors, whose sum is σ = 7893474285312. Its totient is φ = 747954000000.

The previous prime is 2478990709001. The next prime is 2478990709067. The reversal of 2478990709008 is 8009070998742.

2478990709008 is a `hidden beast` number, since 2 + 478 + 9 + 9 + 0 + 70 + 90 + 0 + 8 = 666.

It is a super-2 number, since 2×2478990709008² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2478990709001) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 869514783 + ... + 869517633.

Almost surely, 2^{2478990709008} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2478990709008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3946737142656).

2478990709008 is an abundant number, since it is smaller than the sum of its proper divisors (5414483576304).

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

2478990709008 is an equidigital number, since it uses as much as digits as its factorization.

2478990709008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148 (or 3118 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The spelling of 2478990709008 in words is "two trillion, four hundred seventy-eight billion, nine hundred ninety million, seven hundred nine thousand, eight".