2478745726 has 4 divisors (see below), whose sum is σ = 3718118592. Its totient is φ = 1239372862.

The previous prime is 2478745721. The next prime is 2478745729. The reversal of 2478745726 is 6275478742.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2478745726² = 12288360748326534152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478745721) 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, 619686430 + ... + 619686433.

It is an arithmetic number, because the mean of its divisors is an integer number (929529648).

Almost surely, 2^2478745726 is an apocalyptic number.

2478745726 is a deficient number, since it is larger than the sum of its proper divisors (1239372866).

2478745726 is a wasteful number, since it uses less digits than its factorization.

2478745726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239372865.

The product of its digits is 5268480, while the sum is 52.

The square root of 2478745726 is about 49787.0035852731. The cubic root of 2478745726 is about 1353.3516583836.

The spelling of 2478745726 in words is "two billion, four hundred seventy-eight million, seven hundred forty-five thousand, seven hundred twenty-six".