9649132901 has 4 divisors (see below), whose sum is σ = 10216728972. Its totient is φ = 9081536832.

The previous prime is 9649132751. The next prime is 9649132907. The reversal of 9649132901 is 1092319469.

It is a happy number.

It is a Cunningham number, because it is equal to 98230²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7512382276 + 2136750625 = 86674^2 + 46225^2 .

It is a cyclic number.

It is not a de Polignac number, because 9649132901 - 2²⁶ = 9582024037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9649132907) 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, 283798010 + ... + 283798043.

It is an arithmetic number, because the mean of its divisors is an integer number (2554182243).

Almost surely, 2^9649132901 is an apocalyptic number.

It is an amenable number.

9649132901 is a deficient number, since it is larger than the sum of its proper divisors (567596071).

9649132901 is a wasteful number, since it uses less digits than its factorization.

9649132901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567596070.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 9649132901 is about 98230.0000050901. Note that the first 5 decimals coincide. The cubic root of 9649132901 is about 2128.9367687597.

The spelling of 9649132901 in words is "nine billion, six hundred forty-nine million, one hundred thirty-two thousand, nine hundred one".