479878155 has 64 divisors (see below), whose sum is σ = 913036800. Its totient is φ = 238412160.

The previous prime is 479878103. The next prime is 479878163. The reversal of 479878155 is 551878974.

It is not a de Polignac number, because 479878155 - 2¹³ = 479869963 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 154932 + ... + 157998.

It is an arithmetic number, because the mean of its divisors is an integer number (14266200).

Almost surely, 2^479878155 is an apocalyptic number.

479878155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

479878155 is a deficient number, since it is larger than the sum of its proper divisors (433158645).

479878155 is a wasteful number, since it uses less digits than its factorization.

479878155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161 (or 3155 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 54.

The square root of 479878155 is about 21906.1214047581. The cubic root of 479878155 is about 782.9072716483.

The spelling of 479878155 in words is "four hundred seventy-nine million, eight hundred seventy-eight thousand, one hundred fifty-five".