8878954261 has 2 divisors, whose sum is σ = 8878954262. Its totient is φ = 8878954260.

The previous prime is 8878954243. The next prime is 8878954283. The reversal of 8878954261 is 1624598788.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7377779236 + 1501175025 = 85894^2 + 38745^2 .

It is a cyclic number.

It is not a de Polignac number, because 8878954261 - 2¹¹ = 8878952213 is a prime.

It is a super-2 number, since 2×8878954261² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8878954196 and 8878954205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8878954211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4439477130 + 4439477131.

It is an arithmetic number, because the mean of its divisors is an integer number (4439477131).

Almost surely, 2^8878954261 is an apocalyptic number.

It is an amenable number.

8878954261 is a deficient number, since it is larger than the sum of its proper divisors (1).

8878954261 is an equidigital number, since it uses as much as digits as its factorization.

8878954261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7741440, while the sum is 58.

The square root of 8878954261 is about 94228.2031081990. The cubic root of 8878954261 is about 2070.7163196493.

The spelling of 8878954261 in words is "eight billion, eight hundred seventy-eight million, nine hundred fifty-four thousand, two hundred sixty-one".