15461286973081 has 4 divisors (see below), whose sum is σ = 15461399394000. Its totient is φ = 15461174552164.

The previous prime is 15461286973043. The next prime is 15461286973091. The reversal of 15461286973081 is 18037968216451.

15461286973081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15461286973081 - 2¹⁹ = 15461286448793 is a prime.

It is a super-2 number, since 2×15461286973081² (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 (15461286973091) 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, 56003911 + ... + 56279308.

It is an arithmetic number, because the mean of its divisors is an integer number (3865349848500).

It is a 1-persistent number, because it is pandigital, but 2⋅15461286973081 = 30922573946162 is not.

Almost surely, 2^{15461286973081} is an apocalyptic number.

It is an amenable number.

15461286973081 is a deficient number, since it is larger than the sum of its proper divisors (112420919).

15461286973081 is a wasteful number, since it uses less digits than its factorization.

15461286973081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112420918.

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 15461286973081 in words is "fifteen trillion, four hundred sixty-one billion, two hundred eighty-six million, nine hundred seventy-three thousand, eighty-one".