245808751451 has 2 divisors, whose sum is σ = 245808751452. Its totient is φ = 245808751450.

The previous prime is 245808751439. The next prime is 245808751469. The reversal of 245808751451 is 154157808542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245808751451 - 2²² = 245804557147 is a prime.

It is a super-4 number, since 4×245808751451⁴ (a number of 47 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245808751451.

It is not a weakly prime, because it can be changed into another prime (245808751411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122904375725 + 122904375726.

It is an arithmetic number, because the mean of its divisors is an integer number (122904375726).

Almost surely, 2^245808751451 is an apocalyptic number.

245808751451 is a deficient number, since it is larger than the sum of its proper divisors (1).

245808751451 is an equidigital number, since it uses as much as digits as its factorization.

245808751451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792000, while the sum is 50.

The spelling of 245808751451 in words is "two hundred forty-five billion, eight hundred eight million, seven hundred fifty-one thousand, four hundred fifty-one".