215276563741 has 2 divisors, whose sum is σ = 215276563742. Its totient is φ = 215276563740.

The previous prime is 215276563739. The next prime is 215276563751. The reversal of 215276563741 is 147365672512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160600562500 + 54676001241 = 400750^2 + 233829^2 .

It is a cyclic number.

It is not a de Polignac number, because 215276563741 - 2¹ = 215276563739 is a prime.

It is a super-2 number, since 2×215276563741² (a number of 23 digits) contains 22 as substring.

Together with 215276563739, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215276563751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107638281870 + 107638281871.

It is an arithmetic number, because the mean of its divisors is an integer number (107638281871).

Almost surely, 2^215276563741 is an apocalyptic number.

It is an amenable number.

215276563741 is a deficient number, since it is larger than the sum of its proper divisors (1).

215276563741 is an equidigital number, since it uses as much as digits as its factorization.

215276563741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2116800, while the sum is 49.

The spelling of 215276563741 in words is "two hundred fifteen billion, two hundred seventy-six million, five hundred sixty-three thousand, seven hundred forty-one".