124650781053649 has 8 divisors (see below), whose sum is σ = 130118405036648. Its totient is φ = 119293614120960.

The previous prime is 124650781053613. The next prime is 124650781053661. The reversal of 124650781053649 is 946350187056421.

It can be written as a sum of positive squares in 4 ways, for example, as 581101290000 + 124069679763649 = 762300^2 + 11138657^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 124650781053649 - 2¹³ = 124650781045457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124650781053679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27614260272 + ... + 27614264785.

It is an arithmetic number, because the mean of its divisors is an integer number (16264800629581).

It is a 2-persistent number, because it is pandigital, and so is 2⋅124650781053649 = 249301562107298, but 3⋅124650781053649 = 373952343160947 is not.

Almost surely, 2^{124650781053649} is an apocalyptic number.

It is an amenable number.

124650781053649 is a deficient number, since it is larger than the sum of its proper divisors (5467623982999).

124650781053649 is an equidigital number, since it uses as much as digits as its factorization.

124650781053649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55228525155.

The product of its (nonzero) digits is 43545600, while the sum is 61.

The spelling of 124650781053649 in words is "one hundred twenty-four trillion, six hundred fifty billion, seven hundred eighty-one million, fifty-three thousand, six hundred forty-nine".