2045653177919 has 4 divisors (see below), whose sum is σ = 2203011114696. Its totient is φ = 1888295241144.

The previous prime is 2045653177907. The next prime is 2045653177949. The reversal of 2045653177919 is 9197713565402.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2045653177919 - 2³² = 2041358210623 is a prime.

It is a super-2 number, since 2×2045653177919² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045653177949) 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, 78678968369 + ... + 78678968394.

It is an arithmetic number, because the mean of its divisors is an integer number (550752778674).

Almost surely, 2^{2045653177919} is an apocalyptic number.

2045653177919 is a deficient number, since it is larger than the sum of its proper divisors (157357936777).

2045653177919 is a wasteful number, since it uses less digits than its factorization.

2045653177919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157357936776.

The product of its (nonzero) digits is 14288400, while the sum is 59.

The spelling of 2045653177919 in words is "two trillion, forty-five billion, six hundred fifty-three million, one hundred seventy-seven thousand, nine hundred nineteen".