18354037351 has 16 divisors (see below), whose sum is σ = 20837634048. Its totient is φ = 16046805600.

The previous prime is 18354037309. The next prime is 18354037357. The reversal of 18354037351 is 15373045381.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 18354037351 - 2⁷ = 18354037223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18354037357) 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, 465565 + ... + 503446.

It is an arithmetic number, because the mean of its divisors is an integer number (1302352128).

Almost surely, 2^18354037351 is an apocalyptic number.

18354037351 is a deficient number, since it is larger than the sum of its proper divisors (2483596697).

18354037351 is a wasteful number, since it uses less digits than its factorization.

18354037351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969102.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 18354037351 in words is "eighteen billion, three hundred fifty-four million, thirty-seven thousand, three hundred fifty-one".