2451612641 has 2 divisors, whose sum is σ = 2451612642. Its totient is φ = 2451612640.

The previous prime is 2451612613. The next prime is 2451612661. The reversal of 2451612641 is 1462161542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2180516416 + 271096225 = 46696^2 + 16465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2451612641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2451612598 and 2451612607.

It is not a weakly prime, because it can be changed into another prime (2451612661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1225806320 + 1225806321.

It is an arithmetic number, because the mean of its divisors is an integer number (1225806321).

Almost surely, 2^2451612641 is an apocalyptic number.

It is an amenable number.

2451612641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2451612641 is an equidigital number, since it uses as much as digits as its factorization.

2451612641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 32.

The square root of 2451612641 is about 49513.7621374098. The cubic root of 2451612641 is about 1348.3954674542.

The spelling of 2451612641 in words is "two billion, four hundred fifty-one million, six hundred twelve thousand, six hundred forty-one".