378728621601 has 8 divisors (see below), whose sum is σ = 550877995104. Its totient is φ = 229532497920.

The previous prime is 378728621549. The next prime is 378728621639. The reversal of 378728621601 is 106126827873.

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

It is not a de Polignac number, because 378728621601 - 2¹⁷ = 378728490529 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (378728621681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5738312416 + ... + 5738312481.

It is an arithmetic number, because the mean of its divisors is an integer number (68859749388).

Almost surely, 2^378728621601 is an apocalyptic number.

It is an amenable number.

378728621601 is a deficient number, since it is larger than the sum of its proper divisors (172149373503).

378728621601 is a wasteful number, since it uses less digits than its factorization.

378728621601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11476624911.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 378728621601 in words is "three hundred seventy-eight billion, seven hundred twenty-eight million, six hundred twenty-one thousand, six hundred one".