125107780777603 has 16 divisors (see below), whose sum is σ = 140594338596096. Its totient is φ = 110459134225440.

The previous prime is 125107780777597. The next prime is 125107780777697. The reversal of 125107780777603 is 306777087701521.

It is not a de Polignac number, because 125107780777603 - 2²⁵ = 125107747223171 is a prime.

It is a super-2 number, since 2×125107780777603² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125107780777403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1019176 + ... + 15851002.

It is an arithmetic number, because the mean of its divisors is an integer number (8787146162256).

Almost surely, 2^{125107780777603} is an apocalyptic number.

125107780777603 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

125107780777603 is a deficient number, since it is larger than the sum of its proper divisors (15486557818493).

125107780777603 is a wasteful number, since it uses less digits than its factorization.

125107780777603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14860074.

The product of its (nonzero) digits is 24202080, while the sum is 61.

The spelling of 125107780777603 in words is "one hundred twenty-five trillion, one hundred seven billion, seven hundred eighty million, seven hundred seventy-seven thousand, six hundred three".