125537966786 has 8 divisors (see below), whose sum is σ = 188309692944. Its totient is φ = 62768069140.

The previous prime is 125537966779. The next prime is 125537966797. The reversal of 125537966786 is 687669735521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×125537966786² (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 270200 + ... + 569283.

It is an arithmetic number, because the mean of its divisors is an integer number (23538711618).

Almost surely, 2^125537966786 is an apocalyptic number.

125537966786 is a deficient number, since it is larger than the sum of its proper divisors (62771726158).

125537966786 is an equidigital number, since it uses as much as digits as its factorization.

125537966786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914256.

The product of its digits is 114307200, while the sum is 65.

The spelling of 125537966786 in words is "one hundred twenty-five billion, five hundred thirty-seven million, nine hundred sixty-six thousand, seven hundred eighty-six".