1813078713 has 16 divisors (see below), whose sum is σ = 2563560576. Its totient is φ = 1135875840.

The previous prime is 1813078711. The next prime is 1813078733. The reversal of 1813078713 is 3178703181.

It is not a de Polignac number, because 1813078713 - 2¹ = 1813078711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1813078711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6820 + ... + 60602.

It is an arithmetic number, because the mean of its divisors is an integer number (160222536).

Almost surely, 2^1813078713 is an apocalyptic number.

It is an amenable number.

1813078713 is a deficient number, since it is larger than the sum of its proper divisors (750481863).

1813078713 is a wasteful number, since it uses less digits than its factorization.

1813078713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54464.

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 1813078713 is about 42580.2620118759. The cubic root of 1813078713 is about 1219.3794911817.

The spelling of 1813078713 in words is "one billion, eight hundred thirteen million, seventy-eight thousand, seven hundred thirteen".