423878406055 has 32 divisors (see below), whose sum is σ = 548849403648. Its totient is φ = 312408230400.

The previous prime is 423878406031. The next prime is 423878406103. The reversal of 423878406055 is 550604878324.

It is not a de Polignac number, because 423878406055 - 2¹¹ = 423878404007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423878405993 and 423878406011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99243570 + ... + 99247840.

It is an arithmetic number, because the mean of its divisors is an integer number (17151543864).

Almost surely, 2^423878406055 is an apocalyptic number.

423878406055 is a deficient number, since it is larger than the sum of its proper divisors (124970997593).

423878406055 is a wasteful number, since it uses less digits than its factorization.

423878406055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6907.

The product of its (nonzero) digits is 6451200, while the sum is 52.

The spelling of 423878406055 in words is "four hundred twenty-three billion, eight hundred seventy-eight million, four hundred six thousand, fifty-five".