7876821364 has 12 divisors (see below), whose sum is σ = 13790480704. Its totient is φ = 3936684024.

The previous prime is 7876821343. The next prime is 7876821367. The reversal of 7876821364 is 4631286787.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7876821367) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 421374 + ... + 439669.

Almost surely, 2^7876821364 is an apocalyptic number.

It is an amenable number.

7876821364 is a deficient number, since it is larger than the sum of its proper divisors (5913659340).

7876821364 is a wasteful number, since it uses less digits than its factorization.

7876821364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863334 (or 863332 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 52.

The square root of 7876821364 is about 88751.4583767501. The cubic root of 7876821364 is about 1989.6819743798.

The spelling of 7876821364 in words is "seven billion, eight hundred seventy-six million, eight hundred twenty-one thousand, three hundred sixty-four".