1513412331551 has 4 divisors (see below), whose sum is σ = 1516923729504. Its totient is φ = 1509900933600.

The previous prime is 1513412331493. The next prime is 1513412331577. The reversal of 1513412331551 is 1551332143151.

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 1513412331551 - 2¹⁴ = 1513412315167 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 (1513412331751) 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, 1755698330 + ... + 1755699191.

It is an arithmetic number, because the mean of its divisors is an integer number (379230932376).

Almost surely, 2^{1513412331551} is an apocalyptic number.

1513412331551 is a deficient number, since it is larger than the sum of its proper divisors (3511397953).

1513412331551 is an equidigital number, since it uses as much as digits as its factorization.

1513412331551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3511397952.

The product of its digits is 27000, while the sum is 35.

The spelling of 1513412331551 in words is "one trillion, five hundred thirteen billion, four hundred twelve million, three hundred thirty-one thousand, five hundred fifty-one".