15213011585481 has 24 divisors (see below), whose sum is σ = 22105007364960. Its totient is φ = 10081744848000.

The previous prime is 15213011585459. The next prime is 15213011585539. The reversal of 15213011585481 is 18458511031251.

15213011585481 is a `hidden beast` number, since 1 + 5 + 2 + 13 + 0 + 1 + 158 + 5 + 481 = 666.

15213011585481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15213011585481 - 2⁵ = 15213011585449 is a prime.

It is a super-2 number, since 2×15213011585481² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15213011585441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2826726 + ... + 6198096.

It is an arithmetic number, because the mean of its divisors is an integer number (921041973540).

Almost surely, 2^{15213011585481} is an apocalyptic number.

It is an amenable number.

15213011585481 is a deficient number, since it is larger than the sum of its proper divisors (6891995779479).

15213011585481 is a wasteful number, since it uses less digits than its factorization.

15213011585481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374357 (or 3374354 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 45.

The spelling of 15213011585481 in words is "fifteen trillion, two hundred thirteen billion, eleven million, five hundred eighty-five thousand, four hundred eighty-one".