2420743961 has 2 divisors, whose sum is σ = 2420743962. Its totient is φ = 2420743960.

The previous prime is 2420743957. The next prime is 2420743979. The reversal of 2420743961 is 1693470242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2300161600 + 120582361 = 47960^2 + 10981^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420743961 - 2² = 2420743957 is a prime.

It is not a weakly prime, because it can be changed into another prime (2420743901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210371980 + 1210371981.

It is an arithmetic number, because the mean of its divisors is an integer number (1210371981).

Almost surely, 2^2420743961 is an apocalyptic number.

It is an amenable number.

2420743961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420743961 is an equidigital number, since it uses as much as digits as its factorization.

2420743961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 2420743961 is about 49201.0565028842. The cubic root of 2420743961 is about 1342.7122537757.

The spelling of 2420743961 in words is "two billion, four hundred twenty million, seven hundred forty-three thousand, nine hundred sixty-one".