354620887997 has 4 divisors (see below), whose sum is σ = 373285145280. Its totient is φ = 335956630716.

The previous prime is 354620887967. The next prime is 354620888021. The reversal of 354620887997 is 799788026453.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 354620887997 - 2²⁸ = 354352452541 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 (354620887967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9332128613 + ... + 9332128650.

It is an arithmetic number, because the mean of its divisors is an integer number (93321286320).

Almost surely, 2^354620887997 is an apocalyptic number.

It is an amenable number.

354620887997 is a deficient number, since it is larger than the sum of its proper divisors (18664257283).

354620887997 is a wasteful number, since it uses less digits than its factorization.

354620887997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18664257282.

The product of its (nonzero) digits is 182891520, while the sum is 68.

The spelling of 354620887997 in words is "three hundred fifty-four billion, six hundred twenty million, eight hundred eighty-seven thousand, nine hundred ninety-seven".