9961010951 has 4 divisors (see below), whose sum is σ = 9963657600. Its totient is φ = 9958364304.

The previous prime is 9961010947. The next prime is 9961010953. The reversal of 9961010951 is 1590101699.

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

It is a cyclic number.

It is not a de Polignac number, because 9961010951 - 2² = 9961010947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9961010899 and 9961010908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9961010953) 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, 1317671 + ... + 1325208.

It is an arithmetic number, because the mean of its divisors is an integer number (2490914400).

Almost surely, 2^9961010951 is an apocalyptic number.

9961010951 is a deficient number, since it is larger than the sum of its proper divisors (2646649).

9961010951 is a wasteful number, since it uses less digits than its factorization.

9961010951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646648.

The product of its (nonzero) digits is 21870, while the sum is 41.

The square root of 9961010951 is about 99804.8643654206. The cubic root of 9961010951 is about 2151.6310645224.

The spelling of 9961010951 in words is "nine billion, nine hundred sixty-one million, ten thousand, nine hundred fifty-one".