356634379393 has 4 divisors (see below), whose sum is σ = 364222344960. Its totient is φ = 349046413828.

The previous prime is 356634379391. The next prime is 356634379397. The reversal of 356634379393 is 393973436653.

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, and also an emirpimes, since its reverse is a distinct semiprime: 393973436653 = 71 ⋅5548921643.

It is a cyclic number.

It is not a de Polignac number, because 356634379393 - 2¹ = 356634379391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (356634379391) 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, 3793982713 + ... + 3793982806.

It is an arithmetic number, because the mean of its divisors is an integer number (91055586240).

Almost surely, 2^356634379393 is an apocalyptic number.

It is an amenable number.

356634379393 is a deficient number, since it is larger than the sum of its proper divisors (7587965567).

356634379393 is an equidigital number, since it uses as much as digits as its factorization.

356634379393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7587965566.

The product of its digits is 99202320, while the sum is 61.

The spelling of 356634379393 in words is "three hundred fifty-six billion, six hundred thirty-four million, three hundred seventy-nine thousand, three hundred ninety-three".