124944821646 has 8 divisors (see below), whose sum is σ = 249889643304. Its totient is φ = 41648273880.

The previous prime is 124944821641. The next prime is 124944821653. The reversal of 124944821646 is 646128449421.

It is a happy number.

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

124944821646 is an admirable number.

It is a super-2 number, since 2×124944821646² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124944821641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10412068465 + ... + 10412068476.

It is an arithmetic number, because the mean of its divisors is an integer number (31236205413).

Almost surely, 2^124944821646 is an apocalyptic number.

124944821646 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.

124944821646 is a wasteful number, since it uses less digits than its factorization.

124944821646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20824136946.

The product of its digits is 2654208, while the sum is 51.

The spelling of 124944821646 in words is "one hundred twenty-four billion, nine hundred forty-four million, eight hundred twenty-one thousand, six hundred forty-six".