10451544481387 has 4 divisors (see below), whose sum is σ = 10648743433920. Its totient is φ = 10254345528856.

The previous prime is 10451544481369. The next prime is 10451544481409. The reversal of 10451544481387 is 78318444515401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10451544481387 - 2²⁷ = 10451410263659 is a prime.

It is a super-2 number, since 2×10451544481387² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10451544481187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98599476187 + ... + 98599476292.

It is an arithmetic number, because the mean of its divisors is an integer number (2662185858480).

Almost surely, 2^{10451544481387} is an apocalyptic number.

10451544481387 is a deficient number, since it is larger than the sum of its proper divisors (197198952533).

10451544481387 is an equidigital number, since it uses as much as digits as its factorization.

10451544481387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197198952532.

The product of its (nonzero) digits is 8601600, while the sum is 55.

Adding to 10451544481387 its reverse (78318444515401), we get a palindrome (88769988996788).

The spelling of 10451544481387 in words is "ten trillion, four hundred fifty-one billion, five hundred forty-four million, four hundred eighty-one thousand, three hundred eighty-seven".