378815427122 has 8 divisors (see below), whose sum is σ = 619879789872. Its totient is φ = 172188830500.

The previous prime is 378815427077. The next prime is 378815427127. The reversal of 378815427122 is 221724518873.

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

It is a super-2 number, since 2×378815427122² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (378815427127) 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, 8609441504 + ... + 8609441547.

It is an arithmetic number, because the mean of its divisors is an integer number (77484973734).

Almost surely, 2^378815427122 is an apocalyptic number.

378815427122 is a deficient number, since it is larger than the sum of its proper divisors (241064362750).

378815427122 is a wasteful number, since it uses less digits than its factorization.

378815427122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17218883064.

The product of its digits is 1505280, while the sum is 50.

The spelling of 378815427122 in words is "three hundred seventy-eight billion, eight hundred fifteen million, four hundred twenty-seven thousand, one hundred twenty-two".