245745207783 has 6 divisors (see below), whose sum is σ = 354965300144. Its totient is φ = 163830138516.

The previous prime is 245745207751. The next prime is 245745207809. The reversal of 245745207783 is 387702547542.

It is a happy number.

245745207783 is a `hidden beast` number, since 2 + 45 + 7 + 4 + 520 + 7 + 78 + 3 = 666.

It is not a de Polignac number, because 245745207783 - 2⁵ = 245745207751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245745207703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13652511535 + ... + 13652511552.

Almost surely, 2^245745207783 is an apocalyptic number.

245745207783 is a deficient number, since it is larger than the sum of its proper divisors (109220092361).

245745207783 is a wasteful number, since it uses less digits than its factorization.

245745207783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27305023093 (or 27305023090 counting only the distinct ones).

The product of its (nonzero) digits is 13171200, while the sum is 54.

The spelling of 245745207783 in words is "two hundred forty-five billion, seven hundred forty-five million, two hundred seven thousand, seven hundred eighty-three".