15920487932149 has 8 divisors (see below), whose sum is σ = 16247536362720. Its totient is φ = 15595346490096.

The previous prime is 15920487932143. The next prime is 15920487932179. The reversal of 15920487932149 is 94123978402951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15920487932149 - 2⁷ = 15920487932021 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 (15920487932143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476730262 + ... + 476763655.

It is an arithmetic number, because the mean of its divisors is an integer number (2030942045340).

Almost surely, 2^{15920487932149} is an apocalyptic number.

It is an amenable number.

15920487932149 is a deficient number, since it is larger than the sum of its proper divisors (327048430571).

15920487932149 is an equidigital number, since it uses as much as digits as its factorization.

15920487932149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953494259.

The product of its (nonzero) digits is 39191040, while the sum is 64.

The spelling of 15920487932149 in words is "fifteen trillion, nine hundred twenty billion, four hundred eighty-seven million, nine hundred thirty-two thousand, one hundred forty-nine".