245373956443 has 16 divisors (see below), whose sum is σ = 307458086400. Its totient is φ = 190239667200.

The previous prime is 245373956417. The next prime is 245373956519. The reversal of 245373956443 is 344659373542.

It is a de Polignac number, because none of the positive numbers 2^k-245373956443 is a prime.

It is a super-2 number, since 2×245373956443² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245373956143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7991398 + ... + 8022043.

It is an arithmetic number, because the mean of its divisors is an integer number (19216130400).

Almost surely, 2^245373956443 is an apocalyptic number.

245373956443 is a deficient number, since it is larger than the sum of its proper divisors (62084129957).

245373956443 is a wasteful number, since it uses less digits than its factorization.

245373956443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16013658.

The product of its digits is 32659200, while the sum is 55.

The spelling of 245373956443 in words is "two hundred forty-five billion, three hundred seventy-three million, nine hundred fifty-six thousand, four hundred forty-three".