2154555453707 has 4 divisors (see below), whose sum is σ = 2154558389520. Its totient is φ = 2154552517896.

The previous prime is 2154555453703. The next prime is 2154555453719. The reversal of 2154555453707 is 7073545554512.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2154555453707 - 2² = 2154555453703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154555453703) 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, 713138 + ... + 2194920.

It is an arithmetic number, because the mean of its divisors is an integer number (538639597380).

Almost surely, 2^{2154555453707} is an apocalyptic number.

2154555453707 is a deficient number, since it is larger than the sum of its proper divisors (2935813).

2154555453707 is a wasteful number, since it uses less digits than its factorization.

2154555453707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935812.

The product of its (nonzero) digits is 14700000, while the sum is 53.

The spelling of 2154555453707 in words is "two trillion, one hundred fifty-four billion, five hundred fifty-five million, four hundred fifty-three thousand, seven hundred seven".