245287738739 has 16 divisors (see below), whose sum is σ = 257926961664. Its totient is φ = 232817587200.

The previous prime is 245287738733. The next prime is 245287738741. The reversal of 245287738739 is 937837782542.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245287738739 is a prime.

It is a super-3 number, since 3×245287738739³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245287738733) 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, 2352074 + ... + 2454144.

It is an arithmetic number, because the mean of its divisors is an integer number (16120435104).

Almost surely, 2^245287738739 is an apocalyptic number.

245287738739 is a deficient number, since it is larger than the sum of its proper divisors (12639222925).

245287738739 is a wasteful number, since it uses less digits than its factorization.

245287738739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102898.

The product of its digits is 142248960, while the sum is 65.

The spelling of 245287738739 in words is "two hundred forty-five billion, two hundred eighty-seven million, seven hundred thirty-eight thousand, seven hundred thirty-nine".