2126358931507 has 32 divisors (see below), whose sum is σ = 2262256128000. Its totient is φ = 1995074582400.

The previous prime is 2126358931469. The next prime is 2126358931519. The reversal of 2126358931507 is 7051398536212.

It is a cyclic number.

It is not a de Polignac number, because 2126358931507 - 2¹⁵ = 2126358898739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2126358931547) 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 31 ways as a sum of consecutive naturals, for example, 488928369 + ... + 488932717.

It is an arithmetic number, because the mean of its divisors is an integer number (70695504000).

Almost surely, 2^{2126358931507} is an apocalyptic number.

2126358931507 is a deficient number, since it is larger than the sum of its proper divisors (135897196493).

2126358931507 is a wasteful number, since it uses less digits than its factorization.

2126358931507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5827.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 2126358931507 in words is "two trillion, one hundred twenty-six billion, three hundred fifty-eight million, nine hundred thirty-one thousand, five hundred seven".