124545347851 has 4 divisors (see below), whose sum is σ = 127583039304. Its totient is φ = 121507656400.

The previous prime is 124545347821. The next prime is 124545347867. The reversal of 124545347851 is 158743545421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 124545347851 - 2¹⁹ = 124544823563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124545347795 and 124545347804.

It is not an unprimeable number, because it can be changed into a prime (124545347821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1518845665 + ... + 1518845746.

It is an arithmetic number, because the mean of its divisors is an integer number (31895759826).

Almost surely, 2^124545347851 is an apocalyptic number.

124545347851 is a deficient number, since it is larger than the sum of its proper divisors (3037691453).

124545347851 is an equidigital number, since it uses as much as digits as its factorization.

124545347851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3037691452.

The product of its digits is 2688000, while the sum is 49.

The spelling of 124545347851 in words is "one hundred twenty-four billion, five hundred forty-five million, three hundred forty-seven thousand, eight hundred fifty-one".