2478148923472 has 10 divisors (see below), whose sum is σ = 4801413539258. Its totient is φ = 1239074461728.

The previous prime is 2478148923469. The next prime is 2478148923473. The reversal of 2478148923472 is 2743298418742.

It can be written as a sum of positive squares in only one way, i.e., 1509467788816 + 968681134656 = 1228604^2 + 984216^2 .

It is a super-2 number, since 2×2478148923472² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2478148923472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478148923473) 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 as a sum of consecutive naturals, namely, 77442153843 + ... + 77442153874.

Almost surely, 2^{2478148923472} is an apocalyptic number.

It is an amenable number.

2478148923472 is a deficient number, since it is larger than the sum of its proper divisors (2323264615786).

2478148923472 is a wasteful number, since it uses less digits than its factorization.

2478148923472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154884307725 (or 154884307719 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 61.

The spelling of 2478148923472 in words is "two trillion, four hundred seventy-eight billion, one hundred forty-eight million, nine hundred twenty-three thousand, four hundred seventy-two".