478773651797 has 12 divisors (see below), whose sum is σ = 556952872140. Its totient is φ = 410368504896.

The previous prime is 478773651791. The next prime is 478773651803. The reversal of 478773651797 is 797156377874.

It is an interprime number because it is at equal distance from previous prime (478773651791) and next prime (478773651803).

It can be written as a sum of positive squares in 2 ways, for example, as 132098810116 + 346674841681 = 363454^2 + 588791^2 .

It is not a de Polignac number, because 478773651797 - 2¹² = 478773647701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 478773651797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478773651791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3238979 + ... + 3383567.

It is an arithmetic number, because the mean of its divisors is an integer number (46412739345).

Almost surely, 2^478773651797 is an apocalyptic number.

It is an amenable number.

478773651797 is a deficient number, since it is larger than the sum of its proper divisors (78179220343).

478773651797 is a wasteful number, since it uses less digits than its factorization.

478773651797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212180 (or 212173 counting only the distinct ones).

The product of its digits is 435637440, while the sum is 71.

The spelling of 478773651797 in words is "four hundred seventy-eight billion, seven hundred seventy-three million, six hundred fifty-one thousand, seven hundred ninety-seven".