1978876262 has 32 divisors (see below), whose sum is σ = 3475656864. Its totient is φ = 834969600.

The previous prime is 1978876261. The next prime is 1978876271. The reversal of 1978876262 is 2626788791.

It is a junction number, because it is equal to n+sod(n) for n = 1978876198 and 1978876207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1978876261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8939 + ... + 63542.

It is an arithmetic number, because the mean of its divisors is an integer number (108614277).

Almost surely, 2^1978876262 is an apocalyptic number.

1978876262 is a deficient number, since it is larger than the sum of its proper divisors (1496780602).

1978876262 is a wasteful number, since it uses less digits than its factorization.

1978876262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72584.

The product of its digits is 4064256, while the sum is 56.

The square root of 1978876262 is about 44484.5620637092. The cubic root of 1978876262 is about 1255.4696341333.

The spelling of 1978876262 in words is "one billion, nine hundred seventy-eight million, eight hundred seventy-six thousand, two hundred sixty-two".