1081434107442 has 64 divisors (see below), whose sum is σ = 2500993200384. Its totient is φ = 308764538880.

The previous prime is 1081434107441. The next prime is 1081434107447. The reversal of 1081434107442 is 2447014341801.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 1081434107442.

It is not an unprimeable number, because it can be changed into a prime (1081434107441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5649243 + ... + 5837534.

It is an arithmetic number, because the mean of its divisors is an integer number (39078018756).

Almost surely, 2^{1081434107442} is an apocalyptic number.

1081434107442 is an abundant number, since it is smaller than the sum of its proper divisors (1419559092942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1081434107442 is a wasteful number, since it uses less digits than its factorization.

1081434107442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11486883.

The product of its (nonzero) digits is 86016, while the sum is 39.

The spelling of 1081434107442 in words is "one trillion, eighty-one billion, four hundred thirty-four million, one hundred seven thousand, four hundred forty-two".