515420985404 has 36 divisors (see below), whose sum is σ = 978066865440. Its totient is φ = 237555527040.

The previous prime is 515420985271. The next prime is 515420985407. The reversal of 515420985404 is 404589024515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515420985407) 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, 44177 + ... + 1016264.

It is an arithmetic number, because the mean of its divisors is an integer number (27168524040).

Almost surely, 2^515420985404 is an apocalyptic number.

It is an amenable number.

515420985404 is a deficient number, since it is larger than the sum of its proper divisors (462645880036).

515420985404 is a wasteful number, since it uses less digits than its factorization.

515420985404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061190 (or 1061175 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 47.

The spelling of 515420985404 in words is "five hundred fifteen billion, four hundred twenty million, nine hundred eighty-five thousand, four hundred four".