29980530878 has 16 divisors (see below), whose sum is σ = 45400631760. Its totient is φ = 14847091776.

The previous prime is 29980530857. The next prime is 29980530887. The reversal of 29980530878 is 87803508992.

It is a super-2 number, since 2×29980530878² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580625 + ... + 630147.

It is an arithmetic number, because the mean of its divisors is an integer number (2837539485).

Almost surely, 2^29980530878 is an apocalyptic number.

29980530878 is a deficient number, since it is larger than the sum of its proper divisors (15420100882).

29980530878 is a wasteful number, since it uses less digits than its factorization.

29980530878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52411.

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 29980530878 in words is "twenty-nine billion, nine hundred eighty million, five hundred thirty thousand, eight hundred seventy-eight".