245690122347 has 20 divisors (see below), whose sum is σ = 367077261496. Its totient is φ = 163767225600.

The previous prime is 245690122339. The next prime is 245690122409. The reversal of 245690122347 is 743221096542.

245690122347 is a `hidden beast` number, since 24 + 569 + 0 + 1 + 2 + 23 + 47 = 666.

It is not a de Polignac number, because 245690122347 - 2³ = 245690122339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245690122147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 273972 + ... + 752622.

Almost surely, 2^245690122347 is an apocalyptic number.

245690122347 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

245690122347 is a deficient number, since it is larger than the sum of its proper divisors (121387139149).

245690122347 is an equidigital number, since it uses as much as digits as its factorization.

245690122347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485000 (or 484991 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 245690122347 in words is "two hundred forty-five billion, six hundred ninety million, one hundred twenty-two thousand, three hundred forty-seven".