124646821604 has 6 divisors (see below), whose sum is σ = 218131937814. Its totient is φ = 62323410800.

The previous prime is 124646821597. The next prime is 124646821679. The reversal of 124646821604 is 406128646421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 93880960000 + 30765861604 = 306400^2 + 175402^2 .

It is a super-2 number, since 2×124646821604² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15580852697 + ... + 15580852704.

It is an arithmetic number, because the mean of its divisors is an integer number (36355322969).

Almost surely, 2^124646821604 is an apocalyptic number.

It is an amenable number.

124646821604 is a deficient number, since it is larger than the sum of its proper divisors (93485116210).

124646821604 is a wasteful number, since it uses less digits than its factorization.

124646821604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31161705405 (or 31161705403 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 124646821604 in words is "one hundred twenty-four billion, six hundred forty-six million, eight hundred twenty-one thousand, six hundred four".