125136777603 has 16 divisors (see below), whose sum is σ = 174161454336. Its totient is φ = 79770731040.

The previous prime is 125136777599. The next prime is 125136777611. The reversal of 125136777603 is 306777631521.

It is not a de Polignac number, because 125136777603 - 2² = 125136777599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125136773603) 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 in 15 ways as a sum of consecutive naturals, for example, 93400 + ... + 508917.

It is an arithmetic number, because the mean of its divisors is an integer number (10885090896).

Almost surely, 2^125136777603 is an apocalyptic number.

125136777603 is a deficient number, since it is larger than the sum of its proper divisors (49024676733).

125136777603 is a wasteful number, since it uses less digits than its factorization.

125136777603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605354.

The product of its (nonzero) digits is 1111320, while the sum is 48.

The spelling of 125136777603 in words is "one hundred twenty-five billion, one hundred thirty-six million, seven hundred seventy-seven thousand, six hundred three".