124689124690 has 32 divisors (see below), whose sum is σ = 254426397120. Its totient is φ = 43615952064.

The previous prime is 124689124669. The next prime is 124689124697. The reversal of 124689124690 is 96421986421.

It is a super-2 number, since 2×124689124690² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (124689124697) 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, 25238244 + ... + 25243183.

It is an arithmetic number, because the mean of its divisors is an integer number (7950824910).

Almost surely, 2^124689124690 is an apocalyptic number.

124689124690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124689124690 is an abundant number, since it is smaller than the sum of its proper divisors (129737272430).

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

124689124690 is a wasteful number, since it uses less digits than its factorization.

124689124690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50481466.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 124689124690 in words is "one hundred twenty-four billion, six hundred eighty-nine million, one hundred twenty-four thousand, six hundred ninety".