245405230545 has 32 divisors (see below), whose sum is σ = 398827376640. Its totient is φ = 128826244800.

The previous prime is 245405230519. The next prime is 245405230547. The reversal of 245405230545 is 545032504542.

It is not a de Polignac number, because 245405230545 - 2⁷ = 245405230417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (245405230547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1168320 + ... + 1362270.

It is an arithmetic number, because the mean of its divisors is an integer number (12463355520).

Almost surely, 2^245405230545 is an apocalyptic number.

It is an amenable number.

245405230545 is a deficient number, since it is larger than the sum of its proper divisors (153422146095).

245405230545 is a wasteful number, since it uses less digits than its factorization.

245405230545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195285.

The product of its (nonzero) digits is 480000, while the sum is 39.

The spelling of 245405230545 in words is "two hundred forty-five billion, four hundred five million, two hundred thirty thousand, five hundred forty-five".