103647465257 has 20 divisors (see below), whose sum is σ = 128027536596. Its totient is φ = 83614728960.

The previous prime is 103647465247. The next prime is 103647465263. The reversal of 103647465257 is 752564746301.

It can be written as a sum of positive squares in 2 ways, for example, as 93369358096 + 10278107161 = 305564^2 + 101381^2 .

It is not a de Polignac number, because 103647465257 - 2¹⁰ = 103647464233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103647465247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1228844 + ... + 1310477.

Almost surely, 2^103647465257 is an apocalyptic number.

103647465257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

103647465257 is a deficient number, since it is larger than the sum of its proper divisors (24380071339).

103647465257 is an frugal number, since it uses more digits than its factorization.

103647465257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539366 (or 2539345 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 103647465257 in words is "one hundred three billion, six hundred forty-seven million, four hundred sixty-five thousand, two hundred fifty-seven".