356622940393 has 4 divisors (see below), whose sum is σ = 356990215248. Its totient is φ = 356255665540.

The previous prime is 356622940367. The next prime is 356622940409. The reversal of 356622940393 is 393049226653.

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, and also an emirpimes, since its reverse is a distinct semiprime: 393049226653 = 23 ⋅17089096811.

It is a cyclic number.

It is not a de Polignac number, because 356622940393 - 2¹³ = 356622932201 is a prime.

It is a super-2 number, since 2×356622940393² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 356622940393.

It is not an unprimeable number, because it can be changed into a prime (356622944393) 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, 183635971 + ... + 183637912.

It is an arithmetic number, because the mean of its divisors is an integer number (89247553812).

Almost surely, 2^356622940393 is an apocalyptic number.

It is an amenable number.

356622940393 is a deficient number, since it is larger than the sum of its proper divisors (367274855).

356622940393 is an equidigital number, since it uses as much as digits as its factorization.

356622940393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367274854.

The product of its (nonzero) digits is 6298560, while the sum is 52.

The spelling of 356622940393 in words is "three hundred fifty-six billion, six hundred twenty-two million, nine hundred forty thousand, three hundred ninety-three".