1855740740964 has 48 divisors (see below), whose sum is σ = 4724466329856. Its totient is φ = 562254890400.

The previous prime is 1855740740963. The next prime is 1855740740981. The reversal of 1855740740964 is 4690470475581.

It is a junction number, because it is equal to n+sod(n) for n = 1855740740898 and 1855740740907.

It is not an unprimeable number, because it can be changed into a prime (1855740740963) 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, 311902 + ... + 1951605.

It is an arithmetic number, because the mean of its divisors is an integer number (98426381872).

Almost surely, 2^{1855740740964} is an apocalyptic number.

It is an amenable number.

1855740740964 is an abundant number, since it is smaller than the sum of its proper divisors (2868725588892).

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

1855740740964 is a wasteful number, since it uses less digits than its factorization.

1855740740964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269736 (or 2269734 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 60.

The spelling of 1855740740964 in words is "one trillion, eight hundred fifty-five billion, seven hundred forty million, seven hundred forty thousand, nine hundred sixty-four".