15487012271 has 12 divisors (see below), whose sum is σ = 16872289344. Its totient is φ = 14198608800.

The previous prime is 15487012259. The next prime is 15487012273. The reversal of 15487012271 is 17221078451.

It is a de Polignac number, because none of the positive numbers 2^k-15487012271 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 (15487012273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 680750 + ... + 703131.

It is an arithmetic number, because the mean of its divisors is an integer number (1406024112).

Almost surely, 2^15487012271 is an apocalyptic number.

15487012271 is a deficient number, since it is larger than the sum of its proper divisors (1385277073).

15487012271 is a wasteful number, since it uses less digits than its factorization.

15487012271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383950 (or 1383931 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 38.

The spelling of 15487012271 in words is "fifteen billion, four hundred eighty-seven million, twelve thousand, two hundred seventy-one".