9951632647 has 8 divisors (see below), whose sum is σ = 10968248592. Its totient is φ = 8953670400.

The previous prime is 9951632623. The next prime is 9951632651. The reversal of 9951632647 is 7462361599.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 9951632647 - 2¹⁹ = 9951108359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9951632594 and 9951632603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9951633647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4662304 + ... + 4664437.

It is an arithmetic number, because the mean of its divisors is an integer number (1371031074).

Almost surely, 2^9951632647 is an apocalyptic number.

9951632647 is a gapful number since it is divisible by the number (97) formed by its first and last digit.

9951632647 is a deficient number, since it is larger than the sum of its proper divisors (1016615945).

9951632647 is a wasteful number, since it uses less digits than its factorization.

9951632647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9326849.

The product of its digits is 2449440, while the sum is 52.

The square root of 9951632647 is about 99757.8701005590. The cubic root of 9951632647 is about 2150.9555980671.

The spelling of 9951632647 in words is "nine billion, nine hundred fifty-one million, six hundred thirty-two thousand, six hundred forty-seven".