1953000378611 has 2 divisors, whose sum is σ = 1953000378612. Its totient is φ = 1953000378610.

The previous prime is 1953000378607. The next prime is 1953000378649. The reversal of 1953000378611 is 1168730003591.

It is a weak prime.

It is an emirp because it is prime and its reverse (1168730003591) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1953000378611 - 2² = 1953000378607 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1953000378671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 976500189305 + 976500189306.

It is an arithmetic number, because the mean of its divisors is an integer number (976500189306).

Almost surely, 2^{1953000378611} is an apocalyptic number.

1953000378611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1953000378611 is an equidigital number, since it uses as much as digits as its factorization.

1953000378611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 1953000378611 in words is "one trillion, nine hundred fifty-three billion, three hundred seventy-eight thousand, six hundred eleven".