1395770247842 has 16 divisors (see below), whose sum is σ = 2226086945280. Its totient is φ = 654084798528.

The previous prime is 1395770247769. The next prime is 1395770247847. The reversal of 1395770247842 is 2487420775931.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1395770247847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85874858 + ... + 85891109.

It is an arithmetic number, because the mean of its divisors is an integer number (139130434080).

Almost surely, 2^{1395770247842} is an apocalyptic number.

1395770247842 is a deficient number, since it is larger than the sum of its proper divisors (830316697438).

1395770247842 is a wasteful number, since it uses less digits than its factorization.

1395770247842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171766225.

The product of its (nonzero) digits is 23708160, while the sum is 59.

The spelling of 1395770247842 in words is "one trillion, three hundred ninety-five billion, seven hundred seventy million, two hundred forty-seven thousand, eight hundred forty-two".