1481720451333 has 16 divisors (see below), whose sum is σ = 2115344471040. Its totient is φ = 919260801536.

The previous prime is 1481720451293. The next prime is 1481720451359. The reversal of 1481720451333 is 3331540271841.

It is a cyclic number.

It is not a de Polignac number, because 1481720451333 - 2¹⁴ = 1481720434949 is a prime.

It is a super-4 number, since 4×1481720451333⁴ (a number of 50 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481720453333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163216485 + ... + 163225562.

It is an arithmetic number, because the mean of its divisors is an integer number (132209029440).

Almost surely, 2^{1481720451333} is an apocalyptic number.

It is an amenable number.

1481720451333 is a deficient number, since it is larger than the sum of its proper divisors (633624019707).

1481720451333 is a wasteful number, since it uses less digits than its factorization.

1481720451333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326442156.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 1481720451333 in words is "one trillion, four hundred eighty-one billion, seven hundred twenty million, four hundred fifty-one thousand, three hundred thirty-three".