124788781885 has 16 divisors (see below), whose sum is σ = 153368227584. Its totient is φ = 97420784832.

The previous prime is 124788781879. The next prime is 124788781889. The reversal of 124788781885 is 588187887421.

It is a cyclic number.

It is not a de Polignac number, because 124788781885 - 2¹³ = 124788773693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124788781885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124788781889) 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, 25962 + ... + 500251.

It is an arithmetic number, because the mean of its divisors is an integer number (9585514224).

Almost surely, 2^124788781885 is an apocalyptic number.

It is an amenable number.

124788781885 is a deficient number, since it is larger than the sum of its proper divisors (28579445699).

124788781885 is a wasteful number, since it uses less digits than its factorization.

124788781885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527364.

The product of its digits is 64225280, while the sum is 67.

The spelling of 124788781885 in words is "one hundred twenty-four billion, seven hundred eighty-eight million, seven hundred eighty-one thousand, eight hundred eighty-five".