6961494181139 has 2 divisors, whose sum is σ = 6961494181140. Its totient is φ = 6961494181138.

The previous prime is 6961494181099. The next prime is 6961494181183. The reversal of 6961494181139 is 9311814941696.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6961494181139 is a prime.

It is a super-2 number, since 2×6961494181139² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6961494181199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3480747090569 + 3480747090570.

It is an arithmetic number, because the mean of its divisors is an integer number (3480747090570).

Almost surely, 2^{6961494181139} is an apocalyptic number.

6961494181139 is a deficient number, since it is larger than the sum of its proper divisors (1).

6961494181139 is an equidigital number, since it uses as much as digits as its factorization.

6961494181139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10077696, while the sum is 62.

The spelling of 6961494181139 in words is "six trillion, nine hundred sixty-one billion, four hundred ninety-four million, one hundred eighty-one thousand, one hundred thirty-nine".