1853670353656 has 64 divisors (see below), whose sum is σ = 4016391907680. Its totient is φ = 792666746880.

The previous prime is 1853670353653. The next prime is 1853670353663. The reversal of 1853670353656 is 6563530763581.

It is a super-2 number, since 2×1853670353656² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1853670353656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1853670353653) 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, 3160140 + ... + 3700516.

Almost surely, 2^{1853670353656} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1853670353656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2008195953840).

1853670353656 is an abundant number, since it is smaller than the sum of its proper divisors (2162721554024).

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

1853670353656 is a wasteful number, since it uses less digits than its factorization.

1853670353656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542704 (or 542700 counting only the distinct ones).

The product of its (nonzero) digits is 40824000, while the sum is 58.

The spelling of 1853670353656 in words is "one trillion, eight hundred fifty-three billion, six hundred seventy million, three hundred fifty-three thousand, six hundred fifty-six".