2478993031 has 2 divisors, whose sum is σ = 2478993032. Its totient is φ = 2478993030.

The previous prime is 2478992987. The next prime is 2478993047. The reversal of 2478993031 is 1303998742.

2478993031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2478993031 - 2¹³ = 2478984839 is a prime.

It is a super-2 number, since 2×2478993031² = 12290812895493133922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2478993071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1239496515 + 1239496516.

It is an arithmetic number, because the mean of its divisors is an integer number (1239496516).

Almost surely, 2^2478993031 is an apocalyptic number.

2478993031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2478993031 is an equidigital number, since it uses as much as digits as its factorization.

2478993031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 2478993031 is about 49789.4871534142. The cubic root of 2478993031 is about 1353.3966649499.

The spelling of 2478993031 in words is "two billion, four hundred seventy-eight million, nine hundred ninety-three thousand, thirty-one".