478777295388 has 72 divisors (see below), whose sum is σ = 1305697661184. Its totient is φ = 136145167200.

The previous prime is 478777295383. The next prime is 478777295393. The reversal of 478777295388 is 883592777874.

It is an interprime number because it is at equal distance from previous prime (478777295383) and next prime (478777295393).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478777295383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1805428 + ... + 2053563.

Almost surely, 2^478777295388 is an apocalyptic number.

It is an amenable number.

478777295388 is an abundant number, since it is smaller than the sum of its proper divisors (826920365796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478777295388 is a wasteful number, since it uses less digits than its factorization.

478777295388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3859223 (or 3859214 counting only the distinct ones).

The product of its digits is 1327656960, while the sum is 75.

The spelling of 478777295388 in words is "four hundred seventy-eight billion, seven hundred seventy-seven million, two hundred ninety-five thousand, three hundred eighty-eight".