378932420040121 has 8 divisors (see below), whose sum is σ = 400545169833600. Its totient is φ = 357486564067920.

The previous prime is 378932420040091. The next prime is 378932420040137. The reversal of 378932420040121 is 121040024239873.

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

It is a cyclic number.

It is not a de Polignac number, because 378932420040121 - 2¹⁵ = 378932420007353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378932420040221) 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, 41723450650 + ... + 41723459731.

It is an arithmetic number, because the mean of its divisors is an integer number (50068146229200).

Almost surely, 2^{378932420040121} is an apocalyptic number.

It is an amenable number.

378932420040121 is a deficient number, since it is larger than the sum of its proper divisors (21612749793479).

378932420040121 is a wasteful number, since it uses less digits than its factorization.

378932420040121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83446910639.

The product of its (nonzero) digits is 580608, while the sum is 46.

Adding to 378932420040121 its reverse (121040024239873), we get a palindrome (499972444279994).

The spelling of 378932420040121 in words is "three hundred seventy-eight trillion, nine hundred thirty-two billion, four hundred twenty million, forty thousand, one hundred twenty-one".