396378648097 has 4 divisors (see below), whose sum is σ = 398370500800. Its totient is φ = 394386795396.

The previous prime is 396378648077. The next prime is 396378648103. The reversal of 396378648097 is 790846873693.

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: 790846873693 = 163 ⋅4851821311.

It is a cyclic number.

It is not a de Polignac number, because 396378648097 - 2¹⁹ = 396378123809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396378648007) 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, 995926053 + ... + 995926450.

It is an arithmetic number, because the mean of its divisors is an integer number (99592625200).

Almost surely, 2^396378648097 is an apocalyptic number.

It is an amenable number.

396378648097 is a deficient number, since it is larger than the sum of its proper divisors (1991852703).

396378648097 is a wasteful number, since it uses less digits than its factorization.

396378648097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991852702.

The product of its (nonzero) digits is 329204736, while the sum is 70.

The spelling of 396378648097 in words is "three hundred ninety-six billion, three hundred seventy-eight million, six hundred forty-eight thousand, ninety-seven".