1974723423434 has 4 divisors (see below), whose sum is σ = 2962085135154. Its totient is φ = 987361711716.

The previous prime is 1974723423371. The next prime is 1974723423451. The reversal of 1974723423434 is 4343243274791.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1391920961209 + 582802462225 = 1179797^2 + 763415^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493680855857 + ... + 493680855860.

Almost surely, 2^{1974723423434} is an apocalyptic number.

1974723423434 is a deficient number, since it is larger than the sum of its proper divisors (987361711720).

1974723423434 is an equidigital number, since it uses as much as digits as its factorization.

1974723423434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987361711719.

The product of its digits is 12192768, while the sum is 53.

The spelling of 1974723423434 in words is "one trillion, nine hundred seventy-four billion, seven hundred twenty-three million, four hundred twenty-three thousand, four hundred thirty-four".