9961915214 has 8 divisors (see below), whose sum is σ = 14950243560. Its totient is φ = 4978500696.

The previous prime is 9961915211. The next prime is 9961915217. The reversal of 9961915214 is 4125191699.

It is an interprime number because it is at equal distance from previous prime (9961915211) and next prime (9961915217).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9961915211) 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, 1223384 + ... + 1231499.

It is an arithmetic number, because the mean of its divisors is an integer number (1868780445).

Almost surely, 2^9961915214 is an apocalyptic number.

9961915214 is a deficient number, since it is larger than the sum of its proper divisors (4988328346).

9961915214 is a wasteful number, since it uses less digits than its factorization.

9961915214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456914.

The product of its digits is 174960, while the sum is 47.

The square root of 9961915214 is about 99809.3944175597. The cubic root of 9961915214 is about 2151.6961710830.

The spelling of 9961915214 in words is "nine billion, nine hundred sixty-one million, nine hundred fifteen thousand, two hundred fourteen".