245902743461 has 2 divisors, whose sum is σ = 245902743462. Its totient is φ = 245902743460.

The previous prime is 245902743371. The next prime is 245902743487. The reversal of 245902743461 is 164347209542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234473850625 + 11428892836 = 484225^2 + 106906^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245902743461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245902703461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122951371730 + 122951371731.

It is an arithmetic number, because the mean of its divisors is an integer number (122951371731).

Almost surely, 2^245902743461 is an apocalyptic number.

It is an amenable number.

245902743461 is a deficient number, since it is larger than the sum of its proper divisors (1).

245902743461 is an equidigital number, since it uses as much as digits as its factorization.

245902743461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 245902743461 in words is "two hundred forty-five billion, nine hundred two million, seven hundred forty-three thousand, four hundred sixty-one".