1371045426551 has 4 divisors (see below), whose sum is σ = 1387564046232. Its totient is φ = 1354526806872.

The previous prime is 1371045426511. The next prime is 1371045426557. The reversal of 1371045426551 is 1556245401731.

It is a happy number.

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 1371045426551 - 2²² = 1371041232247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1371045426557) 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, 8259309716 + ... + 8259309881.

It is an arithmetic number, because the mean of its divisors is an integer number (346891011558).

Almost surely, 2^{1371045426551} is an apocalyptic number.

1371045426551 is a deficient number, since it is larger than the sum of its proper divisors (16518619681).

1371045426551 is an equidigital number, since it uses as much as digits as its factorization.

1371045426551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16518619680.

The product of its (nonzero) digits is 504000, while the sum is 44.

It can be divided in two parts, 137104 and 5426551, that added together give a palindrome (5563655).

The spelling of 1371045426551 in words is "one trillion, three hundred seventy-one billion, forty-five million, four hundred twenty-six thousand, five hundred fifty-one".