2140386923506 has 16 divisors (see below), whose sum is σ = 3607876286784. Its totient is φ = 944919979344.

The previous prime is 2140386923503. The next prime is 2140386923527. The reversal of 2140386923506 is 6053296830412.

It is a self number, because there is not a number n which added to its sum of digits gives 2140386923506.

It is not an unprimeable number, because it can be changed into a prime (2140386923503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1789620576 + ... + 1789621771.

It is an arithmetic number, because the mean of its divisors is an integer number (225492267924).

Almost surely, 2^{2140386923506} is an apocalyptic number.

2140386923506 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2140386923506 is a deficient number, since it is larger than the sum of its proper divisors (1467489363278).

2140386923506 is a wasteful number, since it uses less digits than its factorization.

2140386923506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3579242385.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 2140386923506 in words is "two trillion, one hundred forty billion, three hundred eighty-six million, nine hundred twenty-three thousand, five hundred six".