42913194025 has 27 divisors (see below), whose sum is σ = 57638570661. Its totient is φ = 31679799840.

The previous prime is 42913194017. The next prime is 42913194031. The reversal of 42913194025 is 52049131924.

The square root of 42913194025 is 207155.

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

It can be written as a sum of positive squares in 4 ways, for example, as 11060939241 + 31852254784 = 105171^2 + 178472^2 .

It is not a de Polignac number, because 42913194025 - 2³ = 42913194017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 13463482 + ... + 13466668.

Almost surely, 2^42913194025 is an apocalyptic number.

42913194025 is the 207155-th square number.

42913194025 is the 103578-th centered octagonal number.

It is an amenable number.

42913194025 is a deficient number, since it is larger than the sum of its proper divisors (14725376636).

42913194025 is an frugal number, since it uses more digits than its factorization.

42913194025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6410 (or 3205 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 42913194025 in words is "forty-two billion, nine hundred thirteen million, one hundred ninety-four thousand, twenty-five".