1859980494477 has 64 divisors (see below), whose sum is σ = 2862434441216. Its totient is φ = 1052338210560.

The previous prime is 1859980494461. The next prime is 1859980494523. The reversal of 1859980494477 is 7744940899581.

It is not a de Polignac number, because 1859980494477 - 2⁴ = 1859980494461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1859980494399 and 1859980494408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1859980494277) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1701719943 + ... + 1701721035.

It is an arithmetic number, because the mean of its divisors is an integer number (44725538144).

Almost surely, 2^{1859980494477} is an apocalyptic number.

It is an amenable number.

1859980494477 is a deficient number, since it is larger than the sum of its proper divisors (1002453946739).

1859980494477 is a wasteful number, since it uses less digits than its factorization.

1859980494477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690.

The product of its (nonzero) digits is 731566080, while the sum is 75.

The spelling of 1859980494477 in words is "one trillion, eight hundred fifty-nine billion, nine hundred eighty million, four hundred ninety-four thousand, four hundred seventy-seven".