1896780885 has 8 divisors (see below), whose sum is σ = 3034849440. Its totient is φ = 1011616464.

The previous prime is 1896780881. The next prime is 1896780889. The reversal of 1896780885 is 5880876981.

It is an interprime number because it is at equal distance from previous prime (1896780881) and next prime (1896780889).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1896780885 - 2² = 1896780881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1896780881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63226015 + ... + 63226044.

It is an arithmetic number, because the mean of its divisors is an integer number (379356180).

Almost surely, 2^1896780885 is an apocalyptic number.

1896780885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1896780885 is a deficient number, since it is larger than the sum of its proper divisors (1138068555).

1896780885 is a wasteful number, since it uses less digits than its factorization.

1896780885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126452067.

The product of its (nonzero) digits is 7741440, while the sum is 60.

The square root of 1896780885 is about 43552.0480000654. The cubic root of 1896780885 is about 1237.8624474505.

The spelling of 1896780885 in words is "one billion, eight hundred ninety-six million, seven hundred eighty thousand, eight hundred eighty-five".