28979962390 has 32 divisors (see below), whose sum is σ = 55748624544. Its totient is φ = 10808133120.

The previous prime is 28979962343. The next prime is 28979962463. The reversal of 28979962390 is 9326997982.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 778401 + ... + 814780.

It is an arithmetic number, because the mean of its divisors is an integer number (1742144517).

Almost surely, 2^28979962390 is an apocalyptic number.

28979962390 is a deficient number, since it is larger than the sum of its proper divisors (26768662154).

28979962390 is a wasteful number, since it uses less digits than its factorization.

28979962390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593312.

The product of its (nonzero) digits is 26453952, while the sum is 64.

The spelling of 28979962390 in words is "twenty-eight billion, nine hundred seventy-nine million, nine hundred sixty-two thousand, three hundred ninety".