9925842534 has 16 divisors (see below), whose sum is σ = 19862283888. Its totient is φ = 3306847712.

The previous prime is 9925842527. The next prime is 9925842559. The reversal of 9925842534 is 4352485299.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429417 + ... + 451940.

It is an arithmetic number, because the mean of its divisors is an integer number (1241392743).

Almost surely, 2^9925842534 is an apocalyptic number.

9925842534 is an abundant number, since it is smaller than the sum of its proper divisors (9936441354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9925842534 is a wasteful number, since it uses less digits than its factorization.

9925842534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883239.

The product of its digits is 3110400, while the sum is 51.

The square root of 9925842534 is about 99628.5226930521. The cubic root of 9925842534 is about 2149.0958905657.

The spelling of 9925842534 in words is "nine billion, nine hundred twenty-five million, eight hundred forty-two thousand, five hundred thirty-four".