397270194949 has 16 divisors (see below), whose sum is σ = 444305917440. Its totient is φ = 353425121280.

The previous prime is 397270194941. The next prime is 397270194973. The reversal of 397270194949 is 949491072793.

It is a cyclic number.

It is not a de Polignac number, because 397270194949 - 2³ = 397270194941 is a prime.

It is a super-2 number, since 2×397270194949² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397270194941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8742844 + ... + 8788165.

It is an arithmetic number, because the mean of its divisors is an integer number (27769119840).

Almost surely, 2^397270194949 is an apocalyptic number.

It is an amenable number.

397270194949 is a deficient number, since it is larger than the sum of its proper divisors (47035722491).

397270194949 is a wasteful number, since it uses less digits than its factorization.

397270194949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17531100.

The product of its (nonzero) digits is 30862944, while the sum is 64.

The spelling of 397270194949 in words is "three hundred ninety-seven billion, two hundred seventy million, one hundred ninety-four thousand, nine hundred forty-nine".