245275257765 has 16 divisors (see below), whose sum is σ = 398873863296. Its totient is φ = 128668987200.

The previous prime is 245275257739. The next prime is 245275257769. The reversal of 245275257765 is 567752572542.

It is not a de Polignac number, because 245275257765 - 2¹⁸ = 245274995621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245275257769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134029281 + ... + 134031110.

It is an arithmetic number, because the mean of its divisors is an integer number (24929616456).

Almost surely, 2^245275257765 is an apocalyptic number.

It is an amenable number.

245275257765 is a deficient number, since it is larger than the sum of its proper divisors (153598605531).

245275257765 is a wasteful number, since it uses less digits than its factorization.

245275257765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268060460.

The product of its digits is 41160000, while the sum is 57.

The spelling of 245275257765 in words is "two hundred forty-five billion, two hundred seventy-five million, two hundred fifty-seven thousand, seven hundred sixty-five".