109478265625 has 21 divisors (see below), whose sum is σ = 136897798467. Its totient is φ = 87549525000.

The previous prime is 109478265583. The next prime is 109478265683. The reversal of 109478265625 is 526562874901.

The square root of 109478265625 is 330875.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 3 ways, for example, as 95913470601 + 13564795024 = 309699^2 + 116468^2 .

It is not a de Polignac number, because 109478265625 - 2⁷ = 109478265497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 41358052 + ... + 41360698.

Almost surely, 2^109478265625 is an apocalyptic number.

109478265625 is the 330875-th square number.

109478265625 is the 165438-th centered octagonal number.

It is an amenable number.

109478265625 is a deficient number, since it is larger than the sum of its proper divisors (27419532842).

109478265625 is an frugal number, since it uses more digits than its factorization.

109478265625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5324 (or 2652 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 109478265625 in words is "one hundred nine billion, four hundred seventy-eight million, two hundred sixty-five thousand, six hundred twenty-five".