15840729495245 has 8 divisors (see below), whose sum is σ = 19104397382400. Its totient is φ = 12608902270800.

The previous prime is 15840729495229. The next prime is 15840729495263. The reversal of 15840729495245 is 54259492704851.

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

It is not a de Polignac number, because 15840729495245 - 2⁴ = 15840729495229 is a prime.

It is a super-2 number, since 2×15840729495245² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7960164581 + ... + 7960166570.

It is an arithmetic number, because the mean of its divisors is an integer number (2388049672800).

Almost surely, 2^{15840729495245} is an apocalyptic number.

It is an amenable number.

15840729495245 is a deficient number, since it is larger than the sum of its proper divisors (3263667887155).

15840729495245 is a wasteful number, since it uses less digits than its factorization.

15840729495245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15920331355.

The product of its (nonzero) digits is 145152000, while the sum is 65.

The spelling of 15840729495245 in words is "fifteen trillion, eight hundred forty billion, seven hundred twenty-nine million, four hundred ninety-five thousand, two hundred forty-five".