961267507201 has 4 divisors (see below), whose sum is σ = 983622565552. Its totient is φ = 938912448852.

The previous prime is 961267507169. The next prime is 961267507241. The reversal of 961267507201 is 102705762169.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102705762169 = 3581 ⋅28680749.

It is a cyclic number.

It is not a de Polignac number, because 961267507201 - 2⁵ = 961267507169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (961267507241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11177529111 + ... + 11177529196.

It is an arithmetic number, because the mean of its divisors is an integer number (245905641388).

Almost surely, 2^961267507201 is an apocalyptic number.

It is an amenable number.

961267507201 is a deficient number, since it is larger than the sum of its proper divisors (22355058351).

961267507201 is a wasteful number, since it uses less digits than its factorization.

961267507201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22355058350.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 961267507201 in words is "nine hundred sixty-one billion, two hundred sixty-seven million, five hundred seven thousand, two hundred one".