1975814842 has 8 divisors (see below), whose sum is σ = 2964400596. Its totient is φ = 987681312.

The previous prime is 1975814821. The next prime is 1975814843. The reversal of 1975814842 is 2484185791.

It can be written as a sum of positive squares in 2 ways, for example, as 1934328361 + 41486481 = 43981^2 + 6441^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1975814843) 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, 101913 + ... + 119740.

Almost surely, 2^1975814842 is an apocalyptic number.

1975814842 is a deficient number, since it is larger than the sum of its proper divisors (988585754).

1975814842 is a wasteful number, since it uses less digits than its factorization.

1975814842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226112.

The product of its digits is 645120, while the sum is 49.

The square root of 1975814842 is about 44450.1388299294. The cubic root of 1975814842 is about 1254.8218753244.

The spelling of 1975814842 in words is "one billion, nine hundred seventy-five million, eight hundred fourteen thousand, eight hundred forty-two".