509464286408 has 48 divisors (see below), whose sum is σ = 1199977880640. Its totient is φ = 198492576480.

The previous prime is 509464286407. The next prime is 509464286437. The reversal of 509464286408 is 804682464905.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (509464286407) 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, 37586516 + ... + 37600067.

It is an arithmetic number, because the mean of its divisors is an integer number (24999539180).

Almost surely, 2^509464286408 is an apocalyptic number.

It is an amenable number.

509464286408 is an abundant number, since it is smaller than the sum of its proper divisors (690513594232).

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

509464286408 is a wasteful number, since it uses less digits than its factorization.

509464286408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75186618 (or 75186603 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 56.

The spelling of 509464286408 in words is "five hundred nine billion, four hundred sixty-four million, two hundred eighty-six thousand, four hundred eight".