245123522361 has 24 divisors (see below), whose sum is σ = 372836409920. Its totient is φ = 154759203936.

The previous prime is 245123522353. The next prime is 245123522411. The reversal of 245123522361 is 163225321542.

245123522361 is a `hidden beast` number, since 2 + 4 + 5 + 123 + 522 + 3 + 6 + 1 = 666.

It is not a de Polignac number, because 245123522361 - 2³ = 245123522353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245123522311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222036 + ... + 734538.

Almost surely, 2^245123522361 is an apocalyptic number.

It is an amenable number.

245123522361 is a deficient number, since it is larger than the sum of its proper divisors (127712887559).

245123522361 is a wasteful number, since it uses less digits than its factorization.

245123522361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515325 (or 515322 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The spelling of 245123522361 in words is "two hundred forty-five billion, one hundred twenty-three million, five hundred twenty-two thousand, three hundred sixty-one".