1898275863820 has 48 divisors (see below), whose sum is σ = 4610752005888. Its totient is φ = 642996020160.

The previous prime is 1898275863767. The next prime is 1898275863821. The reversal of 1898275863820 is 283685728981.

It is not an unprimeable number, because it can be changed into a prime (1898275863821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81669786 + ... + 81693025.

It is an arithmetic number, because the mean of its divisors is an integer number (96057333456).

Almost surely, 2^{1898275863820} is an apocalyptic number.

1898275863820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1898275863820 is an abundant number, since it is smaller than the sum of its proper divisors (2712476142068).

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

1898275863820 is a wasteful number, since it uses less digits than its factorization.

1898275863820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163362910 (or 163362908 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 67.

The spelling of 1898275863820 in words is "one trillion, eight hundred ninety-eight billion, two hundred seventy-five million, eight hundred sixty-three thousand, eight hundred twenty".