1819362940654 has 32 divisors (see below), whose sum is σ = 3240304067520. Its totient is φ = 749608726272.

The previous prime is 1819362940651. The next prime is 1819362940739. The reversal of 1819362940654 is 4560492639181.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1819362940651) 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, 9521689 + ... + 9710884.

It is an arithmetic number, because the mean of its divisors is an integer number (101259502110).

Almost surely, 2^{1819362940654} is an apocalyptic number.

1819362940654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1819362940654 is a deficient number, since it is larger than the sum of its proper divisors (1420941126866).

1819362940654 is a wasteful number, since it uses less digits than its factorization.

1819362940654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19232844.

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 1819362940654 in words is "one trillion, eight hundred nineteen billion, three hundred sixty-two million, nine hundred forty thousand, six hundred fifty-four".