9162425621 has 4 divisors (see below), whose sum is σ = 9701391852. Its totient is φ = 8623459392.

The previous prime is 9162425599. The next prime is 9162425633. The reversal of 9162425621 is 1265242619.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3493992100 + 5668433521 = 59110^2 + 75289^2 .

It is a cyclic number.

It is not a de Polignac number, because 9162425621 - 2²² = 9158231317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9162425221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269483090 + ... + 269483123.

It is an arithmetic number, because the mean of its divisors is an integer number (2425347963).

Almost surely, 2^9162425621 is an apocalyptic number.

It is an amenable number.

9162425621 is a deficient number, since it is larger than the sum of its proper divisors (538966231).

9162425621 is a wasteful number, since it uses less digits than its factorization.

9162425621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538966230.

The product of its digits is 51840, while the sum is 38.

The square root of 9162425621 is about 95720.5600746256. The cubic root of 9162425621 is about 2092.5225846646.

The spelling of 9162425621 in words is "nine billion, one hundred sixty-two million, four hundred twenty-five thousand, six hundred twenty-one".