356944681449 has 32 divisors (see below), whose sum is σ = 531291340800. Its totient is φ = 236846166480.

The previous prime is 356944681433. The next prime is 356944681451. The reversal of 356944681449 is 944186449653.

It is a happy number.

356944681449 is a `hidden beast` number, since 3 + 569 + 4 + 4 + 68 + 1 + 4 + 4 + 9 = 666.

It is not a de Polignac number, because 356944681449 - 2⁴ = 356944681433 is a prime.

It is a super-2 number, since 2×356944681449² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (356944681459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13609182 + ... + 13635384.

It is an arithmetic number, because the mean of its divisors is an integer number (16602854400).

Almost surely, 2^356944681449 is an apocalyptic number.

It is an amenable number.

356944681449 is a deficient number, since it is larger than the sum of its proper divisors (174346659351).

356944681449 is a wasteful number, since it uses less digits than its factorization.

356944681449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28562 (or 28556 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 63.

The spelling of 356944681449 in words is "three hundred fifty-six billion, nine hundred forty-four million, six hundred eighty-one thousand, four hundred forty-nine".