125754480857 has 2 divisors, whose sum is σ = 125754480858. Its totient is φ = 125754480856.

The previous prime is 125754480827. The next prime is 125754480871. The reversal of 125754480857 is 758084457521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73742661136 + 52011819721 = 271556^2 + 228061^2 .

It is a cyclic number.

It is not a de Polignac number, because 125754480857 - 2⁸ = 125754480601 is a prime.

It is a super-2 number, since 2×125754480857² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125754480827) 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, 62877240428 + 62877240429.

It is an arithmetic number, because the mean of its divisors is an integer number (62877240429).

Almost surely, 2^125754480857 is an apocalyptic number.

It is an amenable number.

125754480857 is a deficient number, since it is larger than the sum of its proper divisors (1).

125754480857 is an equidigital number, since it uses as much as digits as its factorization.

125754480857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12544000, while the sum is 56.

The spelling of 125754480857 in words is "one hundred twenty-five billion, seven hundred fifty-four million, four hundred eighty thousand, eight hundred fifty-seven".