2018797051856 has 40 divisors (see below), whose sum is σ = 4283692596960. Its totient is φ = 915960064896.

The previous prime is 2018797051853. The next prime is 2018797051949. The reversal of 2018797051856 is 6581507978102.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a junction number, because it is equal to n+sod(n) for n = 2018797051795 and 2018797051804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2018797051853) 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, 82239890 + ... + 82264433.

It is an arithmetic number, because the mean of its divisors is an integer number (107092314924).

Almost surely, 2^{2018797051856} is an apocalyptic number.

2018797051856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2018797051856 is an abundant number, since it is smaller than the sum of its proper divisors (2264895545104).

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

2018797051856 is a wasteful number, since it uses less digits than its factorization.

2018797051856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164504403 (or 164504397 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 59.

The spelling of 2018797051856 in words is "two trillion, eighteen billion, seven hundred ninety-seven million, fifty-one thousand, eight hundred fifty-six".