378407396291 has 8 divisors (see below), whose sum is σ = 381190970160. Its totient is φ = 375624697248.

The previous prime is 378407396287. The next prime is 378407396321. The reversal of 378407396291 is 192693704873.

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 378407396291 - 2² = 378407396287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 378407396291.

It is not an unprimeable number, because it can be changed into a prime (378407396261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662585 + ... + 1093541.

It is an arithmetic number, because the mean of its divisors is an integer number (47648871270).

Almost surely, 2^378407396291 is an apocalyptic number.

378407396291 is a deficient number, since it is larger than the sum of its proper divisors (2783573869).

378407396291 is a wasteful number, since it uses less digits than its factorization.

378407396291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437413.

The product of its (nonzero) digits is 13716864, while the sum is 59.

The spelling of 378407396291 in words is "three hundred seventy-eight billion, four hundred seven million, three hundred ninety-six thousand, two hundred ninety-one".