493788695401 has 3 divisors (see below), whose sum is σ = 493789398103. Its totient is φ = 493787992700.

The previous prime is 493788695377. The next prime is 493788695431. The reversal of 493788695401 is 104596887394.

The square root of 493788695401 is 702701.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 478516679001 + 15272016400 = 691749^2 + 123580^2 .

It is not a de Polignac number, because 493788695401 - 2⁷ = 493788695273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493788695431) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 351351 + ... + 1054051.

Almost surely, 2^493788695401 is an apocalyptic number.

493788695401 is the 702701-st square number.

493788695401 is the 351351-st centered octagonal number.

It is an amenable number.

493788695401 is a deficient number, since it is larger than the sum of its proper divisors (702702).

493788695401 is an frugal number, since it uses more digits than its factorization.

493788695401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405402 (or 702701 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 64.

Multiplying 493788695401 by its sum of digits (64), we get a square (31602476505664 = 5621608²).

The spelling of 493788695401 in words is "four hundred ninety-three billion, seven hundred eighty-eight million, six hundred ninety-five thousand, four hundred one".