9951026871 has 4 divisors (see below), whose sum is σ = 13268035832. Its totient is φ = 6634017912.

The previous prime is 9951026831. The next prime is 9951026903. The reversal of 9951026871 is 1786201599.

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

It is not a de Polignac number, because 9951026871 - 2⁹ = 9951026359 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 9951026871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9951026831) 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, 1658504476 + ... + 1658504481.

It is an arithmetic number, because the mean of its divisors is an integer number (3317008958).

Almost surely, 2^9951026871 is an apocalyptic number.

9951026871 is a deficient number, since it is larger than the sum of its proper divisors (3317008961).

9951026871 is a wasteful number, since it uses less digits than its factorization.

9951026871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3317008960.

The product of its (nonzero) digits is 272160, while the sum is 48.

The square root of 9951026871 is about 99754.8338227276. The cubic root of 9951026871 is about 2150.9119528428.

The spelling of 9951026871 in words is "nine billion, nine hundred fifty-one million, twenty-six thousand, eight hundred seventy-one".