125412521758 has 32 divisors (see below), whose sum is σ = 197547264000. Its totient is φ = 59634156960.

The previous prime is 125412521753. The next prime is 125412521777. The reversal of 125412521758 is 857125214521.

It is a happy number.

It is a super-2 number, since 2×125412521758² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125412521753) 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, 17514583 + ... + 17521741.

It is an arithmetic number, because the mean of its divisors is an integer number (6173352000).

Almost surely, 2^125412521758 is an apocalyptic number.

125412521758 is a deficient number, since it is larger than the sum of its proper divisors (72134742242).

125412521758 is a wasteful number, since it uses less digits than its factorization.

125412521758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12040.

The product of its digits is 224000, while the sum is 43.

The spelling of 125412521758 in words is "one hundred twenty-five billion, four hundred twelve million, five hundred twenty-one thousand, seven hundred fifty-eight".