374227638397 has 2 divisors, whose sum is σ = 374227638398. Its totient is φ = 374227638396.

The previous prime is 374227638373. The next prime is 374227638479. The reversal of 374227638397 is 793836722473.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 246220394436 + 128007243961 = 496206^2 + 357781^2 .

It is an emirp because it is prime and its reverse (793836722473) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 374227638397 - 2¹⁵ = 374227605629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (374227638497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187113819198 + 187113819199.

It is an arithmetic number, because the mean of its divisors is an integer number (187113819199).

Almost surely, 2^374227638397 is an apocalyptic number.

It is an amenable number.

374227638397 is a deficient number, since it is larger than the sum of its proper divisors (1).

374227638397 is an equidigital number, since it uses as much as digits as its factorization.

374227638397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64012032, while the sum is 61.

The spelling of 374227638397 in words is "three hundred seventy-four billion, two hundred twenty-seven million, six hundred thirty-eight thousand, three hundred ninety-seven".