1295390870641 has 4 divisors (see below), whose sum is σ = 1480446709312. Its totient is φ = 1110335031972.

The previous prime is 1295390870629. The next prime is 1295390870651. The reversal of 1295390870641 is 1460780935921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1295390870641 - 2¹⁹ = 1295390346353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1295390870651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92527919325 + ... + 92527919338.

It is an arithmetic number, because the mean of its divisors is an integer number (370111677328).

It is a 1-persistent number, because it is pandigital, but 2⋅1295390870641 = 2590781741282 is not.

Almost surely, 2^{1295390870641} is an apocalyptic number.

It is an amenable number.

1295390870641 is a deficient number, since it is larger than the sum of its proper divisors (185055838671).

1295390870641 is an equidigital number, since it uses as much as digits as its factorization.

1295390870641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185055838670.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 1295390870641 in words is "one trillion, two hundred ninety-five billion, three hundred ninety million, eight hundred seventy thousand, six hundred forty-one".