245173562651 has 2 divisors, whose sum is σ = 245173562652. Its totient is φ = 245173562650.

The previous prime is 245173562633. The next prime is 245173562657. The reversal of 245173562651 is 156265371542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245173562651 - 2⁶ = 245173562587 is a prime.

It is a super-2 number, since 2×245173562651² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245173562596 and 245173562605.

It is not a weakly prime, because it can be changed into another prime (245173562657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122586781325 + 122586781326.

It is an arithmetic number, because the mean of its divisors is an integer number (122586781326).

Almost surely, 2^245173562651 is an apocalyptic number.

245173562651 is a deficient number, since it is larger than the sum of its proper divisors (1).

245173562651 is an equidigital number, since it uses as much as digits as its factorization.

245173562651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512000, while the sum is 47.

The spelling of 245173562651 in words is "two hundred forty-five billion, one hundred seventy-three million, five hundred sixty-two thousand, six hundred fifty-one".