1451310638551 has 4 divisors (see below), whose sum is σ = 1455139954600. Its totient is φ = 1447481322504.

The previous prime is 1451310638549. The next prime is 1451310638593. The reversal of 1451310638551 is 1558360131541.

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 1451310638551 - 2¹ = 1451310638549 is a prime.

It is a super-2 number, since 2×1451310638551² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1451310638498 and 1451310638507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451310638501) 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, 1914657456 + ... + 1914658213.

It is an arithmetic number, because the mean of its divisors is an integer number (363784988650).

Almost surely, 2^{1451310638551} is an apocalyptic number.

1451310638551 is a deficient number, since it is larger than the sum of its proper divisors (3829316049).

1451310638551 is an equidigital number, since it uses as much as digits as its factorization.

1451310638551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829316048.

The product of its (nonzero) digits is 216000, while the sum is 43.

The spelling of 1451310638551 in words is "one trillion, four hundred fifty-one billion, three hundred ten million, six hundred thirty-eight thousand, five hundred fifty-one".