952161807781 has 4 divisors (see below), whose sum is σ = 977895910732. Its totient is φ = 926427704832.

The previous prime is 952161807757. The next prime is 952161807797. The reversal of 952161807781 is 187708161259.

952161807781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 580238686756 + 371923121025 = 761734^2 + 609855^2 .

It is a cyclic number.

It is not a de Polignac number, because 952161807781 - 2¹⁷ = 952161676709 is a prime.

It is a super-2 number, since 2×952161807781² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (952161808781) 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, 12867051420 + ... + 12867051493.

It is an arithmetic number, because the mean of its divisors is an integer number (244473977683).

Almost surely, 2^952161807781 is an apocalyptic number.

It is an amenable number.

952161807781 is a deficient number, since it is larger than the sum of its proper divisors (25734102951).

952161807781 is a wasteful number, since it uses less digits than its factorization.

952161807781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25734102950.

The product of its (nonzero) digits is 1693440, while the sum is 55.

The spelling of 952161807781 in words is "nine hundred fifty-two billion, one hundred sixty-one million, eight hundred seven thousand, seven hundred eighty-one".