880393478557 has 2 divisors, whose sum is σ = 880393478558. Its totient is φ = 880393478556.

The previous prime is 880393478537. The next prime is 880393478639. The reversal of 880393478557 is 755874393088.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 640617748996 + 239775729561 = 800386^2 + 489669^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-880393478557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 880393478492 and 880393478501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (880393478527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440196739278 + 440196739279.

It is an arithmetic number, because the mean of its divisors is an integer number (440196739279).

Almost surely, 2^880393478557 is an apocalyptic number.

It is an amenable number.

880393478557 is a deficient number, since it is larger than the sum of its proper divisors (1).

880393478557 is an equidigital number, since it uses as much as digits as its factorization.

880393478557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 203212800, while the sum is 67.

The spelling of 880393478557 in words is "eight hundred eighty billion, three hundred ninety-three million, four hundred seventy-eight thousand, five hundred fifty-seven".