102357428617 has 4 divisors (see below), whose sum is σ = 102541194756. Its totient is φ = 102173662480.

The previous prime is 102357428597. The next prime is 102357428623. The reversal of 102357428617 is 716824753201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 716824753201 = 17 ⋅42166161953.

It can be written as a sum of positive squares in 2 ways, for example, as 65137758841 + 37219669776 = 255221^2 + 192924^2 .

It is a cyclic number.

It is not a de Polignac number, because 102357428617 - 2³¹ = 100209944969 is a prime.

It is a super-3 number, since 3×102357428617³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102357428317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91882234 + ... + 91883347.

It is an arithmetic number, because the mean of its divisors is an integer number (25635298689).

Almost surely, 2^102357428617 is an apocalyptic number.

It is an amenable number.

102357428617 is a deficient number, since it is larger than the sum of its proper divisors (183766139).

102357428617 is an equidigital number, since it uses as much as digits as its factorization.

102357428617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183766138.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 102357428617 in words is "one hundred two billion, three hundred fifty-seven million, four hundred twenty-eight thousand, six hundred seventeen".