478633256408 has 16 divisors (see below), whose sum is σ = 897497200080. Its totient is φ = 239300669728.

The previous prime is 478633256393. The next prime is 478633256411. The reversal of 478633256408 is 804652336874.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1866860 + ... + 2107707.

It is an arithmetic number, because the mean of its divisors is an integer number (56093575005).

Almost surely, 2^478633256408 is an apocalyptic number.

It is an amenable number.

478633256408 is a deficient number, since it is larger than the sum of its proper divisors (418863943672).

478633256408 is a wasteful number, since it uses less digits than its factorization.

478633256408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3989626 (or 3989622 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 56.

The spelling of 478633256408 in words is "four hundred seventy-eight billion, six hundred thirty-three million, two hundred fifty-six thousand, four hundred eight".