102645486452 has 6 divisors (see below), whose sum is σ = 179629601298. Its totient is φ = 51322743224.

The previous prime is 102645486439. The next prime is 102645486521. The reversal of 102645486452 is 254684546201.

It can be written as a sum of positive squares in only one way, i.e., 62647086436 + 39998400016 = 250294^2 + 199996^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102645486397 and 102645486406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12830685803 + ... + 12830685810.

It is an arithmetic number, because the mean of its divisors is an integer number (29938266883).

Almost surely, 2^102645486452 is an apocalyptic number.

It is an amenable number.

102645486452 is a deficient number, since it is larger than the sum of its proper divisors (76984114846).

102645486452 is a wasteful number, since it uses less digits than its factorization.

102645486452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25661371617 (or 25661371615 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 47.

The spelling of 102645486452 in words is "one hundred two billion, six hundred forty-five million, four hundred eighty-six thousand, four hundred fifty-two".