354728511723 has 4 divisors (see below), whose sum is σ = 472971348968. Its totient is φ = 236485674480.

The previous prime is 354728511703. The next prime is 354728511757. The reversal of 354728511723 is 327115827453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 327115827453 = 3 ⋅109038609151.

It is not a de Polignac number, because 354728511723 - 2⁹ = 354728511211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354728511703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59121418618 + ... + 59121418623.

It is an arithmetic number, because the mean of its divisors is an integer number (118242837242).

Almost surely, 2^354728511723 is an apocalyptic number.

354728511723 is a deficient number, since it is larger than the sum of its proper divisors (118242837245).

354728511723 is a wasteful number, since it uses less digits than its factorization.

354728511723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118242837244.

The product of its digits is 1411200, while the sum is 48.

The spelling of 354728511723 in words is "three hundred fifty-four billion, seven hundred twenty-eight million, five hundred eleven thousand, seven hundred twenty-three".