245457347969 has 8 divisors (see below), whose sum is σ = 249129123168. Its totient is φ = 241785815040.

The previous prime is 245457347951. The next prime is 245457347983. The reversal of 245457347969 is 969743754542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245457347969 is a prime.

It is a super-2 number, since 2×245457347969² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245457347909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3964289 + ... + 4025729.

It is an arithmetic number, because the mean of its divisors is an integer number (31141140396).

Almost surely, 2^245457347969 is an apocalyptic number.

It is an amenable number.

245457347969 is a deficient number, since it is larger than the sum of its proper divisors (3671775199).

245457347969 is an equidigital number, since it uses as much as digits as its factorization.

245457347969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121135.

The product of its digits is 228614400, while the sum is 65.

The spelling of 245457347969 in words is "two hundred forty-five billion, four hundred fifty-seven million, three hundred forty-seven thousand, nine hundred sixty-nine".