9942690025 has 24 divisors (see below), whose sum is σ = 13222725120. Its totient is φ = 7393314240.

The previous prime is 9942690019. The next prime is 9942690041. The reversal of 9942690025 is 5200962499.

It is not a de Polignac number, because 9942690025 - 2⁵ = 9942689993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172297 + ... + 222646.

It is an arithmetic number, because the mean of its divisors is an integer number (550946880).

Almost surely, 2^9942690025 is an apocalyptic number.

9942690025 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9942690025 is a deficient number, since it is larger than the sum of its proper divisors (3280035095).

9942690025 is a wasteful number, since it uses less digits than its factorization.

9942690025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395025 (or 395020 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 9942690025 is about 99713.0383901724. The cubic root of 9942690025 is about 2150.3111159657.

The spelling of 9942690025 in words is "nine billion, nine hundred forty-two million, six hundred ninety thousand, twenty-five".