867402730261 has 2 divisors, whose sum is σ = 867402730262. Its totient is φ = 867402730260.

The previous prime is 867402730211. The next prime is 867402730279. The reversal of 867402730261 is 162037204768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 726766480036 + 140636250225 = 852506^2 + 375015^2 .

It is a cyclic number.

It is not a de Polignac number, because 867402730261 - 2¹⁵ = 867402697493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (867402730211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433701365130 + 433701365131.

It is an arithmetic number, because the mean of its divisors is an integer number (433701365131).

Almost surely, 2^867402730261 is an apocalyptic number.

It is an amenable number.

867402730261 is a deficient number, since it is larger than the sum of its proper divisors (1).

867402730261 is an equidigital number, since it uses as much as digits as its factorization.

867402730261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 867402730261 in words is "eight hundred sixty-seven billion, four hundred two million, seven hundred thirty thousand, two hundred sixty-one".