124854988820 has 12 divisors (see below), whose sum is σ = 262195476564. Its totient is φ = 49941995520.

The previous prime is 124854988787. The next prime is 124854988823. The reversal of 124854988820 is 28889458421.

It can be written as a sum of positive squares in 2 ways, for example, as 13920696196 + 110934292624 = 117986^2 + 333068^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 124854988820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124854988823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3121374701 + ... + 3121374740.

It is an arithmetic number, because the mean of its divisors is an integer number (21849623047).

Almost surely, 2^124854988820 is an apocalyptic number.

124854988820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124854988820 is an abundant number, since it is smaller than the sum of its proper divisors (137340487744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124854988820 is a wasteful number, since it uses less digits than its factorization.

124854988820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6242749450 (or 6242749448 counting only the distinct ones).

The product of its (nonzero) digits is 11796480, while the sum is 59.

The spelling of 124854988820 in words is "one hundred twenty-four billion, eight hundred fifty-four million, nine hundred eighty-eight thousand, eight hundred twenty".