124776677421 has 128 divisors (see below), whose sum is σ = 216008294400. Its totient is φ = 70458958080.

The previous prime is 124776677419. The next prime is 124776677453.

It is a happy number.

124776677421 is a `hidden beast` number, since 1 + 2 + 477 + 66 + 77 + 42 + 1 = 666.

124776677421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 124776677421 - 2¹ = 124776677419 is a prime.

It is a super-2 number, since 2×124776677421² (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 (124776677821) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 40470946 + ... + 40474028.

It is an arithmetic number, because the mean of its divisors is an integer number (1687564800).

Almost surely, 2^124776677421 is an apocalyptic number.

124776677421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124776677421 is a deficient number, since it is larger than the sum of its proper divisors (91231616979).

124776677421 is a wasteful number, since it uses less digits than its factorization.

124776677421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3296 (or 3290 counting only the distinct ones).

The product of its digits is 5531904, while the sum is 54.

The spelling of 124776677421 in words is "one hundred twenty-four billion, seven hundred seventy-six million, six hundred seventy-seven thousand, four hundred twenty-one".