125103400640 has 28 divisors (see below), whose sum is σ = 297902473536. Its totient is φ = 50041360128.

The previous prime is 125103400637. The next prime is 125103400687. The reversal of 125103400640 is 46004301521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195473744 + ... + 195474383.

Almost surely, 2^125103400640 is an apocalyptic number.

125103400640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125103400640 is an abundant number, since it is smaller than the sum of its proper divisors (172799072896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125103400640 is an equidigital number, since it uses as much as digits as its factorization.

125103400640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390948144 (or 390948134 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 125103400640 in words is "one hundred twenty-five billion, one hundred three million, four hundred thousand, six hundred forty".