756978136141 has 2 divisors, whose sum is σ = 756978136142. Its totient is φ = 756978136140.

The previous prime is 756978136139. The next prime is 756978136153. The reversal of 756978136141 is 141631879657.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 518477762916 + 238500373225 = 720054^2 + 488365^2 .

It is an emirp because it is prime and its reverse (141631879657) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 756978136141 - 2¹ = 756978136139 is a prime.

Together with 756978136139, 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 (756978136111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 378489068070 + 378489068071.

It is an arithmetic number, because the mean of its divisors is an integer number (378489068071).

Almost surely, 2^756978136141 is an apocalyptic number.

It is an amenable number.

756978136141 is a deficient number, since it is larger than the sum of its proper divisors (1).

756978136141 is an equidigital number, since it uses as much as digits as its factorization.

756978136141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 58.

The spelling of 756978136141 in words is "seven hundred fifty-six billion, nine hundred seventy-eight million, one hundred thirty-six thousand, one hundred forty-one".