125571663379 has 2 divisors, whose sum is σ = 125571663380. Its totient is φ = 125571663378.

The previous prime is 125571663319. The next prime is 125571663383. The reversal of 125571663379 is 973366175521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125571663379 - 2⁷ = 125571663251 is a prime.

It is a super-3 number, since 3×125571663379³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (125571663319) 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, 62785831689 + 62785831690.

It is an arithmetic number, because the mean of its divisors is an integer number (62785831690).

Almost surely, 2^125571663379 is an apocalyptic number.

125571663379 is a deficient number, since it is larger than the sum of its proper divisors (1).

125571663379 is an equidigital number, since it uses as much as digits as its factorization.

125571663379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7144200, while the sum is 55.

The spelling of 125571663379 in words is "one hundred twenty-five billion, five hundred seventy-one million, six hundred sixty-three thousand, three hundred seventy-nine".