215514036649 has 2 divisors, whose sum is σ = 215514036650. Its totient is φ = 215514036648.

The previous prime is 215514036631. The next prime is 215514036653. The reversal of 215514036649 is 946630415512.

215514036649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134573786649 + 80940250000 = 366843^2 + 284500^2 .

It is a cyclic number.

It is not a de Polignac number, because 215514036649 - 2²⁹ = 214977165737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215514036599 and 215514036608.

It is not a weakly prime, because it can be changed into another prime (215514036659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107757018324 + 107757018325.

It is an arithmetic number, because the mean of its divisors is an integer number (107757018325).

Almost surely, 2^215514036649 is an apocalyptic number.

It is an amenable number.

215514036649 is a deficient number, since it is larger than the sum of its proper divisors (1).

215514036649 is an equidigital number, since it uses as much as digits as its factorization.

215514036649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 215514036649 in words is "two hundred fifteen billion, five hundred fourteen million, thirty-six thousand, six hundred forty-nine".