1853990775396 has 36 divisors (see below), whose sum is σ = 4686518111184. Its totient is φ = 617991462000.

The previous prime is 1853990775361. The next prime is 1853990775407. The reversal of 1853990775396 is 6935770993581.

1853990775396 is a `hidden beast` number, since 1 + 85 + 3 + 9 + 9 + 0 + 7 + 7 + 539 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1853990775396² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7431931 + ... + 7677341.

It is an arithmetic number, because the mean of its divisors is an integer number (130181058644).

Almost surely, 2^{1853990775396} is an apocalyptic number.

It is an amenable number.

1853990775396 is an abundant number, since it is smaller than the sum of its proper divisors (2832527335788).

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

1853990775396 is a wasteful number, since it uses less digits than its factorization.

1853990775396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455272 (or 455267 counting only the distinct ones).

The product of its (nonzero) digits is 385786800, while the sum is 72.

The spelling of 1853990775396 in words is "one trillion, eight hundred fifty-three billion, nine hundred ninety million, seven hundred seventy-five thousand, three hundred ninety-six".