2007188128457 has 4 divisors (see below), whose sum is σ = 2021628330960. Its totient is φ = 1992747925956.

The previous prime is 2007188128427. The next prime is 2007188128459. The reversal of 2007188128457 is 7548218817002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2007188128457 - 2²⁰ = 2007187079881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2007188128399 and 2007188128408.

It is not an unprimeable number, because it can be changed into a prime (2007188128459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7220101043 + ... + 7220101320.

It is an arithmetic number, because the mean of its divisors is an integer number (505407082740).

Almost surely, 2^{2007188128457} is an apocalyptic number.

It is an amenable number.

2007188128457 is a deficient number, since it is larger than the sum of its proper divisors (14440202503).

2007188128457 is a wasteful number, since it uses less digits than its factorization.

2007188128457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14440202502.

The product of its (nonzero) digits is 2007040, while the sum is 53.

The spelling of 2007188128457 in words is "two trillion, seven billion, one hundred eighty-eight million, one hundred twenty-eight thousand, four hundred fifty-seven".