424221278677 has 32 divisors (see below), whose sum is σ = 496558577664. Its totient is φ = 354936254400.

The previous prime is 424221278647. The next prime is 424221278693. The reversal of 424221278677 is 776872122424.

It is not a de Polignac number, because 424221278677 - 2¹⁵ = 424221245909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424221278647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22072602 + ... + 22091812.

It is an arithmetic number, because the mean of its divisors is an integer number (15517455552).

Almost surely, 2^424221278677 is an apocalyptic number.

It is an amenable number.

424221278677 is a deficient number, since it is larger than the sum of its proper divisors (72337298987).

424221278677 is a wasteful number, since it uses less digits than its factorization.

424221278677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19729.

The product of its digits is 4214784, while the sum is 52.

The spelling of 424221278677 in words is "four hundred twenty-four billion, two hundred twenty-one million, two hundred seventy-eight thousand, six hundred seventy-seven".