125137638890 has 16 divisors (see below), whose sum is σ = 245724818400. Its totient is φ = 45504595920.

The previous prime is 125137638889. The next prime is 125137638917. The reversal of 125137638890 is 98836731521.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 568807340 + ... + 568807559.

It is an arithmetic number, because the mean of its divisors is an integer number (15357801150).

Almost surely, 2^125137638890 is an apocalyptic number.

125137638890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125137638890 is a deficient number, since it is larger than the sum of its proper divisors (120587179510).

125137638890 is a wasteful number, since it uses less digits than its factorization.

125137638890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137614917.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 125137638890 in words is "one hundred twenty-five billion, one hundred thirty-seven million, six hundred thirty-eight thousand, eight hundred ninety".