5378072261 has 2 divisors, whose sum is σ = 5378072262. Its totient is φ = 5378072260.

The previous prime is 5378072257. The next prime is 5378072309. The reversal of 5378072261 is 1622708735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4650421636 + 727650625 = 68194^2 + 26975^2 .

It is a cyclic number.

It is not a de Polignac number, because 5378072261 - 2² = 5378072257 is a prime.

It is a super-2 number, since 2×5378072261² = 57847322489075304242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5378072761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2689036130 + 2689036131.

It is an arithmetic number, because the mean of its divisors is an integer number (2689036131).

Almost surely, 2^5378072261 is an apocalyptic number.

It is an amenable number.

5378072261 is a deficient number, since it is larger than the sum of its proper divisors (1).

5378072261 is an equidigital number, since it uses as much as digits as its factorization.

5378072261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 5378072261 is about 73335.3411459986. The cubic root of 5378072261 is about 1752.0327140123.

The spelling of 5378072261 in words is "five billion, three hundred seventy-eight million, seventy-two thousand, two hundred sixty-one".