126047215515 has 32 divisors (see below), whose sum is σ = 217407226176. Its totient is φ = 61991677440.

The previous prime is 126047215501. The next prime is 126047215517. The reversal of 126047215515 is 515512740621.

It is not a de Polignac number, because 126047215515 - 2¹⁵ = 126047182747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (126047215517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129756 + ... + 518585.

It is an arithmetic number, because the mean of its divisors is an integer number (6793975818).

Almost surely, 2^126047215515 is an apocalyptic number.

126047215515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126047215515 is a deficient number, since it is larger than the sum of its proper divisors (91360010661).

126047215515 is a wasteful number, since it uses less digits than its factorization.

126047215515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649359.

The product of its (nonzero) digits is 84000, while the sum is 39.

The spelling of 126047215515 in words is "one hundred twenty-six billion, forty-seven million, two hundred fifteen thousand, five hundred fifteen".