2945145861263 has 4 divisors (see below), whose sum is σ = 2946382800168. Its totient is φ = 2943908922360.

The previous prime is 2945145861257. The next prime is 2945145861289. The reversal of 2945145861263 is 3621685415492.

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

It is a cyclic number.

It is not a de Polignac number, because 2945145861263 - 2³⁴ = 2927965992079 is a prime.

It is a super-2 number, since 2×2945145861263² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2945145861199 and 2945145861208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2945145860263) 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, 618465881 + ... + 618470642.

It is an arithmetic number, because the mean of its divisors is an integer number (736595700042).

Almost surely, 2^{2945145861263} is an apocalyptic number.

2945145861263 is a deficient number, since it is larger than the sum of its proper divisors (1236938905).

2945145861263 is a wasteful number, since it uses less digits than its factorization.

2945145861263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236938904.

The product of its digits is 12441600, while the sum is 56.

The spelling of 2945145861263 in words is "two trillion, nine hundred forty-five billion, one hundred forty-five million, eight hundred sixty-one thousand, two hundred sixty-three".