1952338078081 has 8 divisors (see below), whose sum is σ = 1973320977384. Its totient is φ = 1931387587200.

The previous prime is 1952338078027. The next prime is 1952338078087. The reversal of 1952338078081 is 1808708332591.

It can be written as a sum of positive squares in 4 ways, for example, as 1283281152400 + 669056925681 = 1132820^2 + 817959^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1952338078081 - 2¹¹ = 1952338076033 is a prime.

It is a super-2 number, since 2×1952338078081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1952338078087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7980966 + ... + 8221951.

It is an arithmetic number, because the mean of its divisors is an integer number (246665122173).

Almost surely, 2^{1952338078081} is an apocalyptic number.

It is an amenable number.

1952338078081 is a deficient number, since it is larger than the sum of its proper divisors (20982899303).

1952338078081 is a wasteful number, since it uses less digits than its factorization.

1952338078081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16204211.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 1952338078081 in words is "one trillion, nine hundred fifty-two billion, three hundred thirty-eight million, seventy-eight thousand, eighty-one".