1481802247849 has 27 divisors (see below), whose sum is σ = 1894797346071. Its totient is φ = 1154578064640.

The previous prime is 1481802247789. The next prime is 1481802247897. The reversal of 1481802247849 is 9487422081841.

The square root of 1481802247849 is 1217293.

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

It can be written as a sum of positive squares in only one way, i.e., 53681646249 + 1428120601600 = 231693^2 + 1195040^2 .

It is not a de Polignac number, because 1481802247849 - 2¹¹ = 1481802245801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1481802247793 and 1481802247802.

It is not an unprimeable number, because it can be changed into a prime (1481802247349) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 93723657 + ... + 93739465.

Almost surely, 2^{1481802247849} is an apocalyptic number.

1481802247849 is the 1217293-rd square number.

1481802247849 is the 608647-th centered octagonal number.

It is an amenable number.

1481802247849 is a deficient number, since it is larger than the sum of its proper divisors (412995098222).

1481802247849 is an frugal number, since it uses more digits than its factorization.

1481802247849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31654 (or 15827 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 58.

The spelling of 1481802247849 in words is "one trillion, four hundred eighty-one billion, eight hundred two million, two hundred forty-seven thousand, eight hundred forty-nine".