245355434523 has 12 divisors (see below), whose sum is σ = 375249488328. Its totient is φ = 153948507840.

The previous prime is 245355434521. The next prime is 245355434543. The reversal of 245355434523 is 325434553542.

245355434523 is a `hidden beast` number, since 2 + 4 + 53 + 5 + 543 + 4 + 52 + 3 = 666.

It is not a de Polignac number, because 245355434523 - 2¹ = 245355434521 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (245355434521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 801814993 + ... + 801815298.

It is an arithmetic number, because the mean of its divisors is an integer number (31270790694).

Almost surely, 2^245355434523 is an apocalyptic number.

245355434523 is a deficient number, since it is larger than the sum of its proper divisors (129894053805).

245355434523 is a wasteful number, since it uses less digits than its factorization.

245355434523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603630314 (or 1603630311 counting only the distinct ones).

The product of its digits is 4320000, while the sum is 45.

The spelling of 245355434523 in words is "two hundred forty-five billion, three hundred fifty-five million, four hundred thirty-four thousand, five hundred twenty-three".