6145661986279 has 2 divisors, whose sum is σ = 6145661986280. Its totient is φ = 6145661986278.

The previous prime is 6145661986253. The next prime is 6145661986283. The reversal of 6145661986279 is 9726891665416.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6145661986279 is a prime.

It is a super-2 number, since 2×6145661986279² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6145661936279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3072830993139 + 3072830993140.

It is an arithmetic number, because the mean of its divisors is an integer number (3072830993140).

Almost surely, 2^{6145661986279} is an apocalyptic number.

6145661986279 is a deficient number, since it is larger than the sum of its proper divisors (1).

6145661986279 is an equidigital number, since it uses as much as digits as its factorization.

6145661986279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235146240, while the sum is 70.

The spelling of 6145661986279 in words is "six trillion, one hundred forty-five billion, six hundred sixty-one million, nine hundred eighty-six thousand, two hundred seventy-nine".