1581480482678 has 16 divisors (see below), whose sum is σ = 2475481720320. Its totient is φ = 756323269416.

The previous prime is 1581480482651. The next prime is 1581480482683. The reversal of 1581480482678 is 8762840841851.

It is a happy number.

It is a super-4 number, since 4×1581480482678⁴ (a number of 50 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1581480482678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123401 + ... + 1782747.

It is an arithmetic number, because the mean of its divisors is an integer number (154717607520).

Almost surely, 2^{1581480482678} is an apocalyptic number.

1581480482678 is a deficient number, since it is larger than the sum of its proper divisors (894001237642).

1581480482678 is a wasteful number, since it uses less digits than its factorization.

1581480482678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680091.

The product of its (nonzero) digits is 27525120, while the sum is 62.

The spelling of 1581480482678 in words is "one trillion, five hundred eighty-one billion, four hundred eighty million, four hundred eighty-two thousand, six hundred seventy-eight".