2948923561 has 2 divisors, whose sum is σ = 2948923562. Its totient is φ = 2948923560.

The previous prime is 2948923501. The next prime is 2948923591. The reversal of 2948923561 is 1653298492.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2450250000 + 498673561 = 49500^2 + 22331^2 .

It is a cyclic number.

It is not a de Polignac number, because 2948923561 - 2⁷ = 2948923433 is a prime.

It is not a weakly prime, because it can be changed into another prime (2948923501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1474461780 + 1474461781.

It is an arithmetic number, because the mean of its divisors is an integer number (1474461781).

Almost surely, 2^2948923561 is an apocalyptic number.

It is an amenable number.

2948923561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2948923561 is an equidigital number, since it uses as much as digits as its factorization.

2948923561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 49.

The square root of 2948923561 is about 54303.9921276512. The cubic root of 2948923561 is about 1434.0176778171.

The spelling of 2948923561 in words is "two billion, nine hundred forty-eight million, nine hundred twenty-three thousand, five hundred sixty-one".