9625416861 has 4 divisors (see below), whose sum is σ = 12833889152. Its totient is φ = 6416944572.

The previous prime is 9625416851. The next prime is 9625416863. The reversal of 9625416861 is 1686145269.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9625416861 - 2¹⁰ = 9625415837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9625416861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9625416863) 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, 1604236141 + ... + 1604236146.

It is an arithmetic number, because the mean of its divisors is an integer number (3208472288).

Almost surely, 2^9625416861 is an apocalyptic number.

It is an amenable number.

9625416861 is a deficient number, since it is larger than the sum of its proper divisors (3208472291).

9625416861 is a wasteful number, since it uses less digits than its factorization.

9625416861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208472290.

The product of its digits is 622080, while the sum is 48.

The square root of 9625416861 is about 98109.2088491187. The cubic root of 9625416861 is about 2127.1911413860.

The spelling of 9625416861 in words is "nine billion, six hundred twenty-five million, four hundred sixteen thousand, eight hundred sixty-one".