478458477069 has 4 divisors (see below), whose sum is σ = 637944636096. Its totient is φ = 318972318044.

The previous prime is 478458477053. The next prime is 478458477089. The reversal of 478458477069 is 960774854874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 478458477069 - 2⁴ = 478458477053 is a prime.

It is a super-2 number, since 2×478458477069² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 478458476994 and 478458477012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478458477089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79743079509 + ... + 79743079514.

It is an arithmetic number, because the mean of its divisors is an integer number (159486159024).

Almost surely, 2^478458477069 is an apocalyptic number.

It is an amenable number.

478458477069 is a deficient number, since it is larger than the sum of its proper divisors (159486159027).

478458477069 is a wasteful number, since it uses less digits than its factorization.

478458477069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159486159026.

The product of its (nonzero) digits is 379330560, while the sum is 69.

The spelling of 478458477069 in words is "four hundred seventy-eight billion, four hundred fifty-eight million, four hundred seventy-seven thousand, sixty-nine".