3872769640 has 32 divisors (see below), whose sum is σ = 8752826880. Its totient is φ = 1542157632.

The previous prime is 3872769629. The next prime is 3872769661. The reversal of 3872769640 is 469672783.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 208164 + ... + 226003.

It is an arithmetic number, because the mean of its divisors is an integer number (273525840).

Almost surely, 2^3872769640 is an apocalyptic number.

It is an amenable number.

3872769640 is an abundant number, since it is smaller than the sum of its proper divisors (4880057240).

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

3872769640 is a wasteful number, since it uses less digits than its factorization.

3872769640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434401 (or 434397 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 52.

The square root of 3872769640 is about 62231.5807287586. The cubic root of 3872769640 is about 1570.3889174033.

The spelling of 3872769640 in words is "three billion, eight hundred seventy-two million, seven hundred sixty-nine thousand, six hundred forty".