1840610405851 has 16 divisors (see below), whose sum is σ = 2175227688960. Its totient is φ = 1524090248640.

The previous prime is 1840610405849. The next prime is 1840610405857. The reversal of 1840610405851 is 1585040160481.

It is a cyclic number.

It is not a de Polignac number, because 1840610405851 - 2¹ = 1840610405849 is a prime.

It is a super-2 number, since 2×1840610405851² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1840610405798 and 1840610405807.

It is not an unprimeable number, because it can be changed into a prime (1840610405857) 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, 7330021 + ... + 7576966.

It is an arithmetic number, because the mean of its divisors is an integer number (135951730560).

Almost surely, 2^{1840610405851} is an apocalyptic number.

1840610405851 is a deficient number, since it is larger than the sum of its proper divisors (334617283109).

1840610405851 is a wasteful number, since it uses less digits than its factorization.

1840610405851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14907594.

The product of its (nonzero) digits is 153600, while the sum is 43.

The spelling of 1840610405851 in words is "one trillion, eight hundred forty billion, six hundred ten million, four hundred five thousand, eight hundred fifty-one".