15881206083413 has 12 divisors (see below), whose sum is σ = 17464856533740. Its totient is φ = 14430301966080.

The previous prime is 15881206083401. The next prime is 15881206083467. The reversal of 15881206083413 is 31438060218851.

It can be written as a sum of positive squares in 2 ways, for example, as 14831140658884 + 1050065424529 = 3851122^2 + 1024727^2 .

It is not a de Polignac number, because 15881206083413 - 2⁶ = 15881206083349 is a prime.

It is a super-4 number, since 4×15881206083413⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15881206080413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32291798 + ... + 32779911.

It is an arithmetic number, because the mean of its divisors is an integer number (1455404711145).

Almost surely, 2^{15881206083413} is an apocalyptic number.

It is an amenable number.

15881206083413 is a deficient number, since it is larger than the sum of its proper divisors (1583650450327).

15881206083413 is a wasteful number, since it uses less digits than its factorization.

15881206083413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65073748 (or 65073737 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 15881206083413 in words is "fifteen trillion, eight hundred eighty-one billion, two hundred six million, eighty-three thousand, four hundred thirteen".