1974977704922 has 8 divisors (see below), whose sum is σ = 2969308282836. Its totient is φ = 985208277312.

The previous prime is 1974977704919. The next prime is 1974977704927. The reversal of 1974977704922 is 2294077794791.

It is a Cunningham number, because it is equal to 1405339²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 1974977704921 + 1 = 1405339^2 + 1^2 .

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 (1974977704927) 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, 1140286493 + ... + 1140288224.

Almost surely, 2^{1974977704922} is an apocalyptic number.

1974977704922 is a deficient number, since it is larger than the sum of its proper divisors (994330577914).

1974977704922 is a wasteful number, since it uses less digits than its factorization.

1974977704922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280575152.

The product of its (nonzero) digits is 112021056, while the sum is 68.

The spelling of 1974977704922 in words is "one trillion, nine hundred seventy-four billion, nine hundred seventy-seven million, seven hundred four thousand, nine hundred twenty-two".