755400020087 has 2 divisors, whose sum is σ = 755400020088. Its totient is φ = 755400020086.

The previous prime is 755400020047. The next prime is 755400020093. The reversal of 755400020087 is 780020004557.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 755400020087 - 2⁸ = 755400019831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 755400020087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (755400020027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377700010043 + 377700010044.

It is an arithmetic number, because the mean of its divisors is an integer number (377700010044).

Almost surely, 2^755400020087 is an apocalyptic number.

755400020087 is a deficient number, since it is larger than the sum of its proper divisors (1).

755400020087 is an equidigital number, since it uses as much as digits as its factorization.

755400020087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78400, while the sum is 38.

The spelling of 755400020087 in words is "seven hundred fifty-five billion, four hundred million, twenty thousand, eighty-seven".