1853401354490 has 128 divisors (see below), whose sum is σ = 4030868275200. Its totient is φ = 599388698880.

The previous prime is 1853401354451. The next prime is 1853401354499. The reversal of 1853401354490 is 944531043581.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1853401354499) 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, 438050675 + ... + 438054905.

It is an arithmetic number, because the mean of its divisors is an integer number (31491158400).

Almost surely, 2^{1853401354490} is an apocalyptic number.

1853401354490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1853401354490 is an abundant number, since it is smaller than the sum of its proper divisors (2177466920710).

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

1853401354490 is a wasteful number, since it uses less digits than its factorization.

1853401354490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5620.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 1853401354490 in words is "one trillion, eight hundred fifty-three billion, four hundred one million, three hundred fifty-four thousand, four hundred ninety".