478458477064 has 16 divisors (see below), whose sum is σ = 905493848400. Its totient is φ = 236993450832.

The previous prime is 478458477053. The next prime is 478458477089. The reversal of 478458477064 is 460774854874.

It is a junction number, because it is equal to n+sod(n) for n = 478458476987 and 478458477005.

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, 279472554 + ... + 279474265.

It is an arithmetic number, because the mean of its divisors is an integer number (56593365525).

Almost surely, 2^478458477064 is an apocalyptic number.

It is an amenable number.

478458477064 is a deficient number, since it is larger than the sum of its proper divisors (427035371336).

478458477064 is a wasteful number, since it uses less digits than its factorization.

478458477064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558946932 (or 558946928 counting only the distinct ones).

The product of its (nonzero) digits is 168591360, while the sum is 64.

The spelling of 478458477064 in words is "four hundred seventy-eight billion, four hundred fifty-eight million, four hundred seventy-seven thousand, sixty-four".