378621895552402 has 8 divisors (see below), whose sum is σ = 567952742256012. Its totient is φ = 189304314800400.

The previous prime is 378621895552363. The next prime is 378621895552409. The reversal of 378621895552402 is 204255598126873.

It can be written as a sum of positive squares in 2 ways, for example, as 378217741648041 + 404153904361 = 19447821^2 + 635731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (378621895552409) 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, 3316416549 + ... + 3316530712.

It is a 1-persistent number, because it is pandigital, but 2⋅378621895552402 = 757243791104804 is not.

Almost surely, 2^{378621895552402} is an apocalyptic number.

378621895552402 is a deficient number, since it is larger than the sum of its proper divisors (189330846703610).

378621895552402 is a wasteful number, since it uses less digits than its factorization.

378621895552402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6632975804.

The product of its (nonzero) digits is 290304000, while the sum is 67.

The spelling of 378621895552402 in words is "three hundred seventy-eight trillion, six hundred twenty-one billion, eight hundred ninety-five million, five hundred fifty-two thousand, four hundred two".