2078662157018 has 8 divisors (see below), whose sum is σ = 3282098142720. Its totient is φ = 984629442780.

The previous prime is 2078662157009. The next prime is 2078662157021. The reversal of 2078662157018 is 8107512668702.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27350817818 + ... + 27350817893.

It is an arithmetic number, because the mean of its divisors is an integer number (410262267840).

Almost surely, 2^{2078662157018} is an apocalyptic number.

2078662157018 is a deficient number, since it is larger than the sum of its proper divisors (1203435985702).

2078662157018 is a wasteful number, since it uses less digits than its factorization.

2078662157018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54701635732.

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 2078662157018 in words is "two trillion, seventy-eight billion, six hundred sixty-two million, one hundred fifty-seven thousand, eighteen".