1831170226442 has 16 divisors (see below), whose sum is σ = 2765813710464. Its totient is φ = 909236130000.

The previous prime is 1831170226433. The next prime is 1831170226447. The reversal of 1831170226442 is 2446220711381.

It is a self number, because there is not a number n which added to its sum of digits gives 1831170226442.

It is not an unprimeable number, because it can be changed into a prime (1831170226447) 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, 13592 + ... + 1913772.

It is an arithmetic number, because the mean of its divisors is an integer number (172863356904).

Almost surely, 2^{1831170226442} is an apocalyptic number.

1831170226442 is a deficient number, since it is larger than the sum of its proper divisors (934643484022).

1831170226442 is a wasteful number, since it uses less digits than its factorization.

1831170226442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903525.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 1831170226442 in words is "one trillion, eight hundred thirty-one billion, one hundred seventy million, two hundred twenty-six thousand, four hundred forty-two".