2420953559749 has 2 divisors, whose sum is σ = 2420953559750. Its totient is φ = 2420953559748.

The previous prime is 2420953559747. The next prime is 2420953559833. The reversal of 2420953559749 is 9479553590242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1299087050625 + 1121866509124 = 1139775^2 + 1059182^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420953559749 - 2¹ = 2420953559747 is a prime.

It is a super-2 number, since 2×2420953559749² (a number of 26 digits) contains 22 as substring.

Together with 2420953559747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2420953559747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210476779874 + 1210476779875.

It is an arithmetic number, because the mean of its divisors is an integer number (1210476779875).

Almost surely, 2^{2420953559749} is an apocalyptic number.

It is an amenable number.

2420953559749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420953559749 is an equidigital number, since it uses as much as digits as its factorization.

2420953559749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472000, while the sum is 64.

The spelling of 2420953559749 in words is "two trillion, four hundred twenty billion, nine hundred fifty-three million, five hundred fifty-nine thousand, seven hundred forty-nine".