9514219661 has 4 divisors (see below), whose sum is σ = 9586847424. Its totient is φ = 9441591900.

The previous prime is 9514219639. The next prime is 9514219669. The reversal of 9514219661 is 1669124159.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1669124159 = 233 ⋅7163623.

It is a cyclic number.

It is not a de Polignac number, because 9514219661 - 2¹⁴ = 9514203277 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 (9514219669) 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, 36313685 + ... + 36313946.

It is an arithmetic number, because the mean of its divisors is an integer number (2396711856).

Almost surely, 2^9514219661 is an apocalyptic number.

It is an amenable number.

9514219661 is a deficient number, since it is larger than the sum of its proper divisors (72627763).

9514219661 is a wasteful number, since it uses less digits than its factorization.

9514219661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72627762.

The product of its digits is 116640, while the sum is 44.

The square root of 9514219661 is about 97540.8614940426. The cubic root of 9514219661 is about 2118.9679666629.

The spelling of 9514219661 in words is "nine billion, five hundred fourteen million, two hundred nineteen thousand, six hundred sixty-one".