1478057788516 has 27 divisors (see below), whose sum is σ = 2631440294931. Its totient is φ = 726432467064.

The previous prime is 1478057788513. The next prime is 1478057788663. The reversal of 1478057788516 is 6158877508741.

The square root of 1478057788516 is 1215754.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1478057788513) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 143453821 + ... + 143464123.

Almost surely, 2^{1478057788516} is an apocalyptic number.

1478057788516 is the 1215754-th square number.

It is an amenable number.

1478057788516 is a deficient number, since it is larger than the sum of its proper divisors (1153382506415).

1478057788516 is an frugal number, since it uses more digits than its factorization.

1478057788516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20728 (or 10364 counting only the distinct ones).

The product of its (nonzero) digits is 105369600, while the sum is 67.

The spelling of 1478057788516 in words is "one trillion, four hundred seventy-eight billion, fifty-seven million, seven hundred eighty-eight thousand, five hundred sixteen".