1892680641 has 8 divisors (see below), whose sum is σ = 2803971360. Its totient is φ = 1261787076.

The previous prime is 1892680637. The next prime is 1892680681. The reversal of 1892680641 is 1460862981.

It is not a de Polignac number, because 1892680641 - 2² = 1892680637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1892680681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35049615 + ... + 35049668.

It is an arithmetic number, because the mean of its divisors is an integer number (350496420).

Almost surely, 2^1892680641 is an apocalyptic number.

It is an amenable number.

1892680641 is a deficient number, since it is larger than the sum of its proper divisors (911290719).

1892680641 is an equidigital number, since it uses as much as digits as its factorization.

1892680641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70099292 (or 70099286 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 1892680641 is about 43504.9496149576. The cubic root of 1892680641 is about 1236.9698474757.

The spelling of 1892680641 in words is "one billion, eight hundred ninety-two million, six hundred eighty thousand, six hundred forty-one".