125781280458 has 8 divisors (see below), whose sum is σ = 251562560928. Its totient is φ = 41927093484.

The previous prime is 125781280423. The next prime is 125781280481. The reversal of 125781280458 is 854082187521.

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

125781280458 is an admirable number.

It is a super-3 number, since 3×125781280458³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125781280458.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10481773366 + ... + 10481773377.

It is an arithmetic number, because the mean of its divisors is an integer number (31445320116).

Almost surely, 2^125781280458 is an apocalyptic number.

125781280458 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

125781280458 is a wasteful number, since it uses less digits than its factorization.

125781280458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20963546748.

The product of its (nonzero) digits is 1433600, while the sum is 51.

The spelling of 125781280458 in words is "one hundred twenty-five billion, seven hundred eighty-one million, two hundred eighty thousand, four hundred fifty-eight".