15942099729 has 16 divisors (see below), whose sum is σ = 21685220672. Its totient is φ = 10415167488.

The previous prime is 15942099727. The next prime is 15942099763. The reversal of 15942099729 is 92799024951.

It is not a de Polignac number, because 15942099729 - 2¹ = 15942099727 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15942099727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166684 + ... + 244269.

It is an arithmetic number, because the mean of its divisors is an integer number (1355326292).

Almost surely, 2^15942099729 is an apocalyptic number.

It is an amenable number.

15942099729 is a deficient number, since it is larger than the sum of its proper divisors (5743120943).

15942099729 is a wasteful number, since it uses less digits than its factorization.

15942099729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411216.

The product of its (nonzero) digits is 3674160, while the sum is 57.

The spelling of 15942099729 in words is "fifteen billion, nine hundred forty-two million, ninety-nine thousand, seven hundred twenty-nine".