828078307530 has 32 divisors (see below), whose sum is σ = 2024885827584. Its totient is φ = 216654449856.

The previous prime is 828078307493. The next prime is 828078307579. The reversal of 828078307530 is 35703870828.

It is a super-3 number, since 3×828078307530³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260400394 + ... + 260403573.

It is an arithmetic number, because the mean of its divisors is an integer number (63277682112).

Almost surely, 2^828078307530 is an apocalyptic number.

828078307530 is an abundant number, since it is smaller than the sum of its proper divisors (1196807520054).

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

828078307530 is a wasteful number, since it uses less digits than its factorization.

828078307530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520804030.

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 828078307530 in words is "eight hundred twenty-eight billion, seventy-eight million, three hundred seven thousand, five hundred thirty".