9925937641 has 9 divisors (see below), whose sum is σ = 10083077949. Its totient is φ = 9771213804.

The previous prime is 9925937639. The next prime is 9925937653. The reversal of 9925937641 is 1467395299.

It is a happy number.

The square root of 9925937641 is 99629.

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

It is not a de Polignac number, because 9925937641 - 2¹ = 9925937639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9925931641) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6674400 + ... + 6675886.

Almost surely, 2^9925937641 is an apocalyptic number.

9925937641 is the 99629-th square number.

9925937641 is the 49815-th centered octagonal number.

It is an amenable number.

9925937641 is a deficient number, since it is larger than the sum of its proper divisors (157140308).

9925937641 is an frugal number, since it uses more digits than its factorization.

9925937641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108 (or 1554 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 55.

The cubic root of 9925937641 is about 2149.1027545811.

It can be divided in two parts, 99259 and 37641, that added together give a square (136900 = 370²).

The spelling of 9925937641 in words is "nine billion, nine hundred twenty-five million, nine hundred thirty-seven thousand, six hundred forty-one".